Size 3: 3.15" x 2.36" (L*W) for 23-33 lbs; Ideal for Standard Poodle, Schnauzer, Sheltie, Jack Russell Terrier, Cocker Spaniel etc. Please mainly refer to the dog’s paw width to choose the right size for your puppy from the size chart in the picture. QUALITY: AQH dog shoes use rubber soles and the shoes are soft, so dogs are happy to walk in shoes. The toe cap is reinforced with super fiber material, then sewn together, it is not easy to degumming. The inside of the shoe is sewn with an elastic coating, which will not scratch the dog’s toe. SR and ADJUSTABLE: Easy to put on/off. Non-slip sole with reflective straps provides stability and traction, helps your dog walk safely at night. WATERPROOF: The surface of the shoes is made of ultra-fiber material, which can be simply rainproof and artificially splashed. But the shoes are not completely waterproof, they cannot be applied in deep water or sand, because there may be water or fine sand seeping through the holes of the sewing needles.