Sport Anti-Slip Dog Socks. Keep your pup's paws protected with these socks! Anti-slip silicone sole helps add traction on slippery surfaces. A must-have for dogs with foot injuries allergies and sensitive feet. These fun and functional socks also can protect hardwood floors from nail scratches and protects against salt and other outdoor irritants. Made of stretchy cotton/spandex and can be used indoors and outdoors. Comes in a set of 4 socks. Sizing: <b>XS</b>: Fits paw width: 1.5 in. <b>S</b>: Fits paw width: 1.75 in. <b>M</b>: Fits paw width: 2 in. <b>L</b>: Fits paw width: 2.5 in. <i>This size chart is approximate - size may vary depending on amount of fur etc.</i>