Ruffwear Summit Trex Weather Resistant Dog Boots. Great for both cold and hot temperatures! Specially designed by Ruffwear to provide everyday traction and paw protection from extreme temperatures abrasive surfaces and salt or other snowmelt chemicals. The outsole provides flexible traction while an integrated stretch gaiter protects and locks out dirt and debris.Features:- Non-marking outsole offers flexible traction and is built for high-mileage- Weather-resistant ripstop upper keeps out dirt and moisture- Reliable intuitive hook and look cinch strap- Low-light visibility with reflective trim- Four boots includedSizing: 1.5: Paw Width 1.5 in (38 mm)1.75: Paw Width 1.75 in (44 mm)2: Paw Width 2 in (51 mm)2.25: Paw Width 2.25 in (57 mm)2.5: Paw Width 2.5 in (64 mm)2.75: Paw Width 2.75 in (70 mm)3: Paw Width 3 in (76 mm)3.25: Paw Width 3.25 in (83 mm)