Built tough enough to withstand rough treatment, these strong, seamless boot covers are ultrasonically sealed on all sides and feature a solid bottom that provides a leak-proof barrier and increased durability and performance Breathable material allows the wearer to be comfortable during long, high fluidprocedures Convenient hook-and-loop strap allows wearer to adjust for the best possible fit Foam strips on the bottom help provide excellent traction to help reduce the risk of slips and falls Knee-high Regular/Large fits up men's size 12; X-Large thigh-high fits up to men's size 15