Please mainly refer to the width, weight can only be used as an additional reference; Size 1: 1.29"x0.98"(L*W) for 1-6 lbs; size 2: 1.59"x1.18"(L*W) for 6-12 lbs; size 3: 1.70"x1.31"(L*W) for 12-17 lbs; size 4: 1.89"x1.51"(L*W) for 17-22 lbs; size 5: 2.25"x1.78"(L*W) for 22-27 lbs | Convenient and Secure: Zip and self-adhesive strap design for manual adjustment, easy to put on / off. These small dog shoes expand with adjustable and reflective straps to ensure a tight fit, also make your puppy safe at night, and easy to find it when it lost | Water-resistant and Warm: High-quality water-resistant fabric which keep pup's paws dry and warm. No more wiping muddy or sandy paws after the rain or snow. Note these shoes can't be applied in deep water or be immersed in water for a long time as water will penetrate into the shoes through sewing needle holes | Comfortable and Skid-resistant: High-quality rubber soles give the dog's paws pampering care, soft and comfortable. The slip-proof sole provides stability and traction, protection from rough terrain and hot pavement. Help older dogs to stand up on hardwood floors easier | Fashionable and Cute: Cute shoes specially designed for small dogs, not only durable but also very fashionable. It can make the dog more outstanding. And it is safe to take the dog to do outdoor activities such as hiking and running