Skip to content
Vet RanchVet Ranch
  • Home
  • Pet Animals
    • Dog
      • Dog Crate
      • Dog House
      • Dog Nail
      • Dog Shampoo
      • Dog Bed
      • Dog Harness
      • Dog Door
      • Dog Muzzles
      • Dog Car Seat
      • Dog Feeder
      • Dog Harness
      • Dog Kennel
      • Dog Pen
    • Cat
      • Cat Carrier
      • Cat Clipper
      • Cat Couch
      • Cat exercise wheel
      • Cat Litter
      • Cat Litter Box
      • Cat scratching post
      • Cat stroller
      • Cat Tracker
      • Cat Tree
      • Cat Vacuum
    • Bird
      • Bird Camera Feeder
      • Bird Stand
      • Bird Bath
      • Bird Cage
      • Bird Crate
      • Bird Feeder
      • Bird Seed
    • Rabbit
      • Rabbit Cage
      • Rabbit Hutch
    • Fish
      • Fish Tank
      • Fish Aquarium
    • Pet Stroller
  • Knowledge
    • Best Product
    • Review
    • Blog
  • About Us
  • Contact Us
  • Write for Us
Vet RanchVet Ranch
  • Home » 
  • Puppy Harness » 
  • Best Harness For Medium Sized Dog

Best Harness For Medium Sized Dog

Arthur Crowley August 31, 2023

When it involves the safety of your hairy companion, there are no faster ways. Recently, lots of pet dog owners have actually selected dog Best Harness For Medium Sized Dog over typical collars because of the sensitivity of their pet’s neck locations. Pet dog Best Harness For Medium Sized Dog come in different sizes and also styles, making it a challenging job to choose the very best one for your dog. In this article, we will explore the essential factors to think about when choosing the ideal pet harness for your beloved pet.

Contents
  1. Best Harness For Medium Sized Dog – Full Evaluation And Also Purchasing Guide
    1. rabbitgoo Dog Harness No Pull with 2 Leash Clips, Adjustable Soft Padded, Reflective Oxford No Choke Pet Vest with Easy Control Handle for Medium Sized Dogs, Black, M
      1. Features
    2. Best Pet Supplies Voyager Step-in Air Harness - All Weather Mesh, Reflective, No Pull Harness for Dogs, Cats - Secure with Hook & Loop Fastener, Buckle, Double D-Rings - Fuchsia, M
      1. Features
    3. PHOEPET No Pull Dog Harness Medium Reflective Front Clip Vest with Handle,Adjustable 2 Metal Rings 3 Buckles,[Easy to Put on & Take Off](M, Orange)
      1. Features
    4. rabbitgoo Dog Harness Medium Sized, No Pull Pet Harness with 3 Buckles, Adjustable Soft Padded Vest with Control Handle, Walking Reflective Pet Vest for Medium Dogs, Blue, M
      1. Features
    5. Best Pet Supplies Voyager Adjustable Dog Vest Harness Breathable No Pull Harness for Small, Medium, Large Dogs, Harness for Walking, Jogging, Easy Step-in, Reflective Stripes - Turquoise, L
      1. Features
    6. Joytale No Pull Dog Harness Medium Sized Dog, Reflective Pet Vest with Front Clip, Adjustable Soft Padded Harnesses with Easy Control Handle for Training and Walking, Black, M
      1. Features
    7. tobeDRI No Pull Dog Harness Adjustable Reflective Oxford Easy Control Medium Large Dog Harness with A Free Heavy Duty 5ft Dog Leash (L (Neck: 18"-25.5", Chest: 24.5"-33"), Blue Harness+Leash)
      1. Features
  2. Points to Take Into Consideration when Purchasing the very best Pet Dog Harness
    1. 1. Convenience
    2. 2. Dimension and Kind
    3. 3. Resilience
    4. 4. Visibility
    5. 5. User-Friendliness
  3. Exactly how Usually Should I Clean a Pet Dog Harness?
  4. Final thought:

Best Harness For Medium Sized Dog – Full Evaluation And Also Purchasing Guide

Check out our top products that you can purchase:

1
rabbitgoo Dog Harness No Pull with 2 Leash Clips, Adjustable Soft Padded, Reflective Oxford No Choke Pet Vest with Easy Control Handle for Medium Sized Dogs, Black, M
rabbitgoo Dog Harness No Pull with 2 Leash Clips, Adjustable Soft Padded, Reflective Oxford No...
BUY NOW Amazon.com
9.6
BUY NOW
Amazon.com
2
Best Pet Supplies Voyager Step-in Air Harness - All Weather Mesh, Reflective, No Pull Harness for Dogs, Cats - Secure with Hook & Loop Fastener, Buckle, Double D-Rings - Fuchsia, M
Recommended
Best Pet Supplies Voyager Step-in Air Harness - All Weather Mesh, Reflective, No Pull Harness for...
BUY NOW Amazon.com
9.3
BUY NOW
Amazon.com
3
PHOEPET No Pull Dog Harness Medium Reflective Front Clip Vest with Handle,Adjustable 2 Metal Rings 3 Buckles,[Easy to Put on & Take Off](M, Orange)
High quality
PHOEPET No Pull Dog Harness Medium Reflective Front Clip Vest with Handle,Adjustable 2 Metal...
BUY NOW Amazon.com
9.3
BUY NOW
Amazon.com
4
rabbitgoo Dog Harness Medium Sized, No Pull Pet Harness with 3 Buckles, Adjustable Soft Padded Vest with Control Handle, Walking Reflective Pet Vest for Medium Dogs, Blue, M
rabbitgoo Dog Harness Medium Sized, No Pull Pet Harness with 3 Buckles, Adjustable Soft Padded...
BUY NOW Amazon.com
9.1
BUY NOW
Amazon.com
5
Best Pet Supplies Voyager Adjustable Dog Vest Harness Breathable No Pull Harness for Small, Medium, Large Dogs, Harness for Walking, Jogging, Easy Step-in, Reflective Stripes - Turquoise, L
Best Pet Supplies Voyager Adjustable Dog Vest Harness Breathable No Pull Harness for Small,...
BUY NOW Amazon.com
9
BUY NOW
Amazon.com
6
Joytale No Pull Dog Harness Medium Sized Dog, Reflective Pet Vest with Front Clip, Adjustable Soft Padded Harnesses with Easy Control Handle for Training and Walking, Black, M
Joytale No Pull Dog Harness Medium Sized Dog, Reflective Pet Vest with Front Clip, Adjustable...
BUY NOW Amazon.com
8.6
BUY NOW
Amazon.com
7
tobeDRI No Pull Dog Harness Adjustable Reflective Oxford Easy Control Medium Large Dog Harness with A Free Heavy Duty 5ft Dog Leash (L (Neck: 18"-25.5", Chest: 24.5"-33"), Blue Harness+Leash)
tobeDRI No Pull Dog Harness Adjustable Reflective Oxford Easy Control Medium Large Dog Harness...
BUY NOW Amazon.com
8.1
BUY NOW
Amazon.com

*Note: The score is based on our AI score (Editor’s choice and rating).
rabbitgoo Dog Harness No Pull with 2 Leash Clips, Adjustable Soft Padded, Reflective Oxford No Choke Pet Vest with Easy Control Handle for Medium Sized Dogs, Black, M

rabbitgoo Dog Harness No Pull with 2 Leash Clips, Adjustable Soft Padded, Reflective Oxford No Choke Pet Vest with Easy Control Handle for Medium Sized Dogs, Black, M

$23.98
$21.98
 in stock
3 used from $20.22
Free shipping
BUY NOW
Amazon.com
as of September 20, 2025 9:01 am

Features

  • Medium Dog Harness - Recommended Breeds: Medium Dogs, such as Boston Terrier, Dachshund, Heeler, Bulldog, Boxer, Puggle, Australian Shepherd, etc. Please measure the size carefully before purchasing this present for your puppy. Make your puppy stand out with this Classic Black Harness!
  • No Pull, No Choke - Our non-pulling dog harness is specially designed with 2 metal leash rings for safer dog walks. Use the chest attachment clip to stop your dog from pulling on walks, perfect for dog training or dogs who tend to pull. The back one is great for casual walks, jogging, hiking, etc
  • Easy to Use - This hassle-free overhead harness is easy to put on and take off with its 2 fast-release buckles. Slide the harness over your dog's head, buckle it up, adjust the straps, and here you go! Grab the top handle for additional control. Lightweight and easy to clean
  • Fully Adjustable - This adjustable harness features 4 easy adjusting straps around the body. You can use its 2 neck straps and 2 chest straps to create a perfect fit for your dog with some room of growth. No worries about slipping out or choking
  • Safe and Comfortable - Your dog will enjoy the daily walk in this comfort dog harness! Made of sturdy nylon oxford and padded with soft cushion to protect your dog's skin. Breathable air mesh keeps your dog cool during outdoor activities. Super bright reflective strips ensure a safe walk both day and night
Best Pet Supplies Voyager Step-in Air Harness - All Weather Mesh, Reflective, No Pull Harness for Dogs, Cats - Secure with Hook & Loop Fastener, Buckle, Double D-Rings - Fuchsia, M

Best Pet Supplies Voyager Step-in Air Harness - All Weather Mesh, Reflective, No Pull Harness for Dogs, Cats - Secure with Hook & Loop Fastener, Buckle, Double D-Rings - Fuchsia, M

$14.99
$8.51
 in stock
4 new from $8.51
8 used from $7.49
Free shipping
BUY NOW
Amazon.com
as of September 20, 2025 9:01 am

Features

  • Perfect Fit: Sizing does NOT directly correspond to your pet's breed or weight; Ensure the ideal fit by MEASURING your pet with our Size Guide and referring to our sizing chart before ordering; Not for large dogs
  • Comfort All Year: Made with a soft and breathable air mesh, this lightweight, fast drying harness ensures maximum comfort for your pet during walks, regardless of the season
  • Enhanced Visibility: Featuring two reflective bands, this harness increases your pet's visibility during morning and evening strolls, keeping them safe in low light conditions
  • Triple Security: Our harness provides three layers of protection with a secure hook and loop fastener, a sturdy buckle, and double D-rings, ensuring your pet's safety at all times
  • Easy to Use: Enjoy hassle-free walks with this simple, easy-to-wear vest harness. Just let your pet step in, clip the harness, and you are ready to go
PHOEPET No Pull Dog Harness Medium Reflective Front Clip Vest with Handle,Adjustable 2 Metal Rings 3 Buckles,[Easy to Put on & Take Off](M, Orange)

PHOEPET No Pull Dog Harness Medium Reflective Front Clip Vest with Handle,Adjustable 2 Metal Rings 3 Buckles,[Easy to Put on & Take Off](M, Orange)

$15.83
$14.25
 in stock
BUY NOW
Amazon.com
as of September 20, 2025 9:01 am

Features

  • [UPDATED VESION, EASY TO PUT ON & TAKE OFF] This dog harness has 3 buckles( One is on the neck with Lockable, two are on the chest), NO NEED go through dog’s head. This will let your dog loves to wear harness!
  • [NO PULL WITH 2 HOOK LOOPS] There are 2 sturdy metal hook loops for leash attachment. If you use the front hook on the chest, it will reduce the pulling a lot and make going for a walk more enjoyable. As usual, most people like to use the back hook.
  • [REFLECTIVE MATERIAL] The reflective material will be really nice when it gets dark. Also, your dog will be saw easily. This reflective material can make drivers have long time to react, which ensure your dog’s safety!
  • [USEFUL & SOFT HANDLES] You will like this handle on the back,it is helpful in controlling dogs a bit closer to you when they are trying to lunge at something. Also, it is convenient to assist dogs into the car.
  • [100% BEST CUSTOMER SERVICE] If any products quality really exits, a refund or replacement will be available.
rabbitgoo Dog Harness Medium Sized, No Pull Pet Harness with 3 Buckles, Adjustable Soft Padded Vest with Control Handle, Walking Reflective Pet Vest for Medium Dogs, Blue, M

rabbitgoo Dog Harness Medium Sized, No Pull Pet Harness with 3 Buckles, Adjustable Soft Padded Vest with Control Handle, Walking Reflective Pet Vest for Medium Dogs, Blue, M

$18.98
$15.18
 in stock
2 new from $15.18
4 used from $12.14
Free shipping
BUY NOW
Amazon.com
as of September 20, 2025 9:01 am

Features

  • Create a Snug Fit: 4 fully adjustable straps suit most breeds, fitting while allowing freedom of movement. The adjustable two chest straps and two neck straps were created specifically for dogs going through a fast growth period. Size information: 19.2"- 23.5" Neck Girth, 19.2"- 27.5" Chest Girth
  • Simple to Wear: Thoughtfully designed with 3 quick-release buckles, the harness could be wear smoothly. It allows the owner to easily put the harness on dog's body without sliping the harness over the dog's head. So it don't need to adjust the fit every time
  • Ultra Safety Design: The pet harness is composed of tough, abrasion-resistant Oxford fabric with reinforced stitching for added resilience. A lockable buckle at the neckline ensures a secure fit and prevents accidental release under extreme stress. Wide-area reflective stitching improves visibility, making it perfect for usage at night
  • Cozy All Day: To keep the dog cool and prevent overheating, the harness is constructed with breathable air mesh that allow for good air circulation. Protected by the padded cushion and soft edges, it allows the dog in cozy all day without irriation. Meanwhile, the widened top handle with a grip-friendly design provides comfortable control for pet owners
  • Control in Multiple Ways: The no-pull dog harness has two metal leash attachment points for various conditions and may be used for a variety of activities like daily walking, jogging, running, trekking, hunting, and training. Furthermore, the ergonomic top handle may be handy for additional training support or carrying assistance
Best Pet Supplies Voyager Adjustable Dog Vest Harness Breathable No Pull Harness for Small, Medium, Large Dogs, Harness for Walking, Jogging, Easy Step-in, Reflective Stripes - Turquoise, L

Best Pet Supplies Voyager Adjustable Dog Vest Harness Breathable No Pull Harness for Small, Medium, Large Dogs, Harness for Walking, Jogging, Easy Step-in, Reflective Stripes - Turquoise, L

$15.99
$11.99
 in stock
7 used from $11.06
Free shipping
BUY NOW
Amazon.com
as of September 20, 2025 9:01 am

Features

  • ATTENTION: Sizing on this dog harness does NOT directly correspond to your pet's breed or weight. Please MEASURE your dog by printing out our Size Guide which has a measuring tape and refer to our sizing chart for the best fit before ordering.
  • ALL WEATHER MESH: This dog harness is made with soft breathable air mesh for all sizes of dogs. The lightweight pet harness is perfect for walks all year round.
  • REFLECTIVE WEBBING: 3M Scotchlite reflective material on the straps of this dog harness enhance your dog’s visibility during those early morning and late evening strolls.
  • PERSONALIZED FIT: Adjust the neck and chest straps on the Step-In Flex dog vest no-pull harness to get the perfect fit for your small, medium or large dog.
  • STEP IN CLIP & GO! Step your dog into Voyager's simple and easy walk vest dog harness. Style it with a matching Voyager Dog Leash. Click ‘Add to Cart’ now!
Joytale No Pull Dog Harness Medium Sized Dog, Reflective Pet Vest with Front Clip, Adjustable Soft Padded Harnesses with Easy Control Handle for Training and Walking, Black, M

Joytale No Pull Dog Harness Medium Sized Dog, Reflective Pet Vest with Front Clip, Adjustable Soft Padded Harnesses with Easy Control Handle for Training and Walking, Black, M

$15.59
$12.63
 in stock
BUY NOW
Amazon.com
as of September 20, 2025 9:01 am

Features

  • No Pull & No Choke: Joytale no pull dog harness featured with 2 metal hook rings for better control. The front clip allows you to redirect your dog's attention and reduce pulling, while the back clip provides traditional leash attachment
  • Recommended Breeds: Medium size dogs - Chest Girth: 14"-28" / Neck Girth: 13.5"-18.5", such as French Bulldog, Beagle, Boston Terrier, Scottish Terrier, Border Collie, Dachshund, Heeler
  • Safety Details: The 360° highly reflective strips around the pet harness provides good visibility in the dark. Strengthen and widened handle allows you with maximum space to control your dog while walking through a crowd or walking past another dog
  • Easy To Use & Adjust: Great for growing and mixed breeds. Easy on and off the dog harness in seconds with 2 quick-release buckles. 4 adjustment points (2 Shoulder & 2 Chest) allow a custom fit with maximum adjustability without choking and slipping out
  • Premium Quality: The padded dog vest is made of enhanced high density outer nylon oxford, durable and water-resistant enough. Soft breathable mesh inner layer that prevents pressure on your dog’s neck, protecting them from injury
tobeDRI No Pull Dog Harness Adjustable Reflective Oxford Easy Control Medium Large Dog Harness with A Free Heavy Duty 5ft Dog Leash (L (Neck: 18"-25.5", Chest: 24.5"-33"), Blue Harness+Leash)

tobeDRI No Pull Dog Harness Adjustable Reflective Oxford Easy Control Medium Large Dog Harness with A Free Heavy Duty 5ft Dog Leash (L (Neck: 18"-25.5", Chest: 24.5"-33"), Blue Harness+Leash)

$19.99  in stock
BUY NOW
Amazon.com
as of September 20, 2025 9:01 am

Features

  • 【 NO PULL & NO CHOKE 】tobeDRI dog harness featured with 2 strong metal delta shape-rings on front and back for leash attaching, front clip prevent pulling and back for relaxed walking. The 2 rings are sewn with durable thick nylon webbing and enforced box stitches and bartacks that preventing ripped off even pulling hardly. Pulling pressure is evenly distributed to the body to prevent choking
  • 【 EASY TO USE AND LOCKING SECURITY 】The dog harness with simple design and quick snap buckles which make it easy to put on and take off. Locking feature on both snaps makes it more secure, 100% ensures no accidentally detachment. 4 easy size adjustors at neck and chest for easy adjusting to fit your dog perfectly, even with some room of growth. Perfect for daily walking, running, hiking, training, hunting, outdoor adventure and more!
  • 【 DURABILITY 】Made of durable nylon webbing, enhanced high density nylon oxford, breathable mesh lining and strong accessories including buckle, size adjustors
  • 【 EASY CLEANING 】Machine washable is easy for daily use. All metal accessories are rust-proof
  • 【 REFLECTIVE 】Reflective stitching maintains high visibility at night for safety

Points to Take Into Consideration when Purchasing the very best Pet Dog Harness

1. Convenience

The very first indication of a excellent harness is convenience. A correctly suitable harness made from a soft and also breathable material guarantees that your canine does not experience discomfort. Canines have a tendency to wiggle without uneasy Best Harness For Medium Sized Dog. Consequently, it is crucial to choose a harness that fits well, neither as well limited neither too loose, and also does not irritate your pet’s skin.

2. Dimension and Kind

Canine takes advantage of been available in various types, including front clip Best Harness For Medium Sized Dog, back clip Best Harness For Medium Sized Dog, step-in Best Harness For Medium Sized Dog, and also no-pull Best Harness For Medium Sized Dog. It is essential to select a harness kind that matches your pet dog’s type, age, and task degree. Additionally, take into consideration the dimension of your pet’s neck and also torso to ensure a correct fit.

3. Resilience

The sturdiness of the harness is another crucial aspect. A resilient harness lasts longer and also holds up against the routine wear and tear of use. Look for a harness made from a material that stands up to fraying as well as tearing, capable of supporting your pet’s weight and stamina. Take into consideration Best Harness For Medium Sized Dog with included extra padding, such as neoprene, for improved protection as well as sturdiness.

4. Visibility

For early morning or late-night walks, a harness with reflective products is a smart choice. Reflective Best Harness For Medium Sized Dog enhance your pet’s visibility as well as security, especially in low-light problems. You can opt for a harness with reflective stitching or a high-visibility color.

5. User-Friendliness

Lastly, the new canine harness need to be straightforward for both you and also your pet dog. Prevent complicated Best Harness For Medium Sized Dog that cause stress and also compromise safety. Look for Best Harness For Medium Sized Dog with simple clasps and changes, making it a breeze to put on and take off your pet dog’s harness.

Exactly how Usually Should I Clean a Pet Dog Harness?

It is advised to clean your dog’s harness after every use, especially when utilized outdoors. Regular washing removes dirt and also oils that might have collected throughout getaways and also protects against microorganisms accumulation over time. Furthermore, check the harness for indications of wear or damages, such as fraying or tears in the textile, and replace it if needed. Cleaning up and evaluating the harness routinely guarantee your pet dog’s safety and security as well as comfort while using it.
Shop the harness in a completely dry location when not in use to prevent damage from moisture or mold. Avoid utilizing harsh chemicals on your pet’s harness as they can be hazardous to both the product and your pet dog’s skin. Rather, use a mild cleaning agent or pet-safe product. By following these straightforward ideas, you can keep your pet’s harness in exceptional problem for many years to find.

Final thought:

Finally, picking the ideal pet harness is important for a secure outing with your fuzzy friend. Prioritize your pet’s convenience, consider the kind and also dimension of the harness, assess its sturdiness, presence, as well as user-friendliness. By keeping these factors in mind, you will find the excellent harness that ensures your pet’s security, comfort, and enjoyment on every stroll.

Share
facebookShare on FacebooktwitterShare on TwitterpinterestShare on Pinterest
linkedinShare on LinkedinvkShare on VkredditShare on ReddittumblrShare on TumblrviadeoShare on ViadeobufferShare on BufferpocketShare on PocketwhatsappShare on WhatsappviberShare on ViberemailShare on EmailskypeShare on SkypediggShare on DiggmyspaceShare on MyspacebloggerShare on Blogger YahooMailShare on Yahoo mailtelegramShare on TelegramMessengerShare on Facebook Messenger gmailShare on GmailamazonShare on AmazonSMSShare on SMS
Post navigation
Previous post

Best Harness For Bullmastiff

Next post

Reddy Harness For Dogs

Arthur Crowley

Arthur Crowley

To provide you with the expert assistance you need, Vet Ranch with licensed veterinarians can answer your health-related pet issues.

For the purpose of sharing knowledge with each other, we have jointly created this website, where you can get useful information from us and also where we expand our knowledge through your comments from you.

Related Posts

Best Harness For Medium Sized Dog

Good 2 Go Front Walking Harness

Best Harness For Medium Sized Dog

Best No Pull Dog Harness For Corgi

Best Harness For Medium Sized Dog

The Best Dog Seat Belt Harness

Best Harness For Medium Sized Dog

Best Harness For Pomeranian Dogs

Best Harness For Medium Sized Dog

Ray Allen Ultimate Harness

Best Harness For Medium Sized Dog

Cute Front Clip Dog Harness

Best Harness For Medium Sized Dog

Safest Chihuahua Harness

Best Harness For Medium Sized Dog

Best Harness For Large Dogs Who Pull

Affiliate disclaimer

Vet Ranch (vetranch.org) is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

Amazon and the Amazon logo are trademarks of Amazon.com, Inc, or its affiliates.

Affiliate Disclaimer

Vet Ranch (vetranch.org) is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Amazon and the Amazon logo are trademarks of Amazon.com, Inc, or its affiliates.

Category

Best Product

Review

Blog

Page

  • About Us
  • Contact Us
  • Affiliate Disclaimer
  • Privacy Policy

Follow us on social

VET RANCH LOGO
FacebookFacebookTwitterInstagramYoutubeYoutube
Copyright © 2025 Vet Ranch
Your privacy

By selecting "Accept all cookies," you consent to Vetranch storing cookies on your device and disclosing information in accordance with our Privacy policy

Menu
  • Home
  • Pet Animals
    • Dog
      • Dog Crate
      • Dog House
      • Dog Nail
      • Dog Shampoo
      • Dog Bed
      • Dog Harness
      • Dog Door
      • Dog Muzzles
      • Dog Car Seat
      • Dog Feeder
      • Dog Harness
      • Dog Kennel
      • Dog Pen
    • Cat
      • Cat Carrier
      • Cat Clipper
      • Cat Couch
      • Cat exercise wheel
      • Cat Litter
      • Cat Litter Box
      • Cat scratching post
      • Cat stroller
      • Cat Tracker
      • Cat Tree
      • Cat Vacuum
    • Bird
      • Bird Camera Feeder
      • Bird Stand
      • Bird Bath
      • Bird Cage
      • Bird Crate
      • Bird Feeder
      • Bird Seed
    • Rabbit
      • Rabbit Cage
      • Rabbit Hutch
    • Fish
      • Fish Tank
      • Fish Aquarium
    • Pet Stroller
  • Knowledge
    • Best Product
    • Review
    • Blog
  • About Us
  • Contact Us
  • Write for Us
FacebookTwitterPinterest