Moolecole Breathable Mesh Pet Shoes Anti-Skid Sole Zipper Paw Protector with Velcro for Small to Medium Dogs 4-Pack This set of 4pcs pet dog boots keep paws dry, warm and safe. Adjustable velcro straps keep them snug and secure. Deluxe anti-slip sole. Material: adjustable velcro snap(Sold by 4pcs/set). The sizes we offer only fit for small to medium dogs. Please Measure your Dog's Paw Length by Full Rounded Width for Best Fit. Size run small, if your pet usual size is xs or s, please choose our medium size. For size details, please refer to product description below.