Ultra Paws Rugged Boot&trade are for active charging dogs when extra sole protection is needed. Incorporating the same design as the Ultra Paws Durable boot&trade it has a recycled tire sole about 50% thicker than the Durable® sole and is suited for tougher conditions. The Ultra Paws Rugged Boot&trade is great in urban settings on asphalt or concrete snow and protection from salt in the winter. They feature open side seams that allow the boot to slip on easily. Two velcro straps with foam at the closure to cushion a dog's foot and create a secure grip - these boots stay on! The sole is suited for wet dry hot or cold conditioners made with water resistant 100 denier nylon material with the top of the toe wrap creating a boot suited for tough conditions. Care Instructions: Loosely fasten the Velcro closure wash in a cold water cycle hang to air dry.