COMPATIBLE WITH ALL CAM WALKING BOOTS & BRACES: The orthopedic sock liner compatible with all surgical orthopedic air cam walker boots short or tall (XP, FP, SP models), such as post op surgical shoes, foot leg cast boots, closed toe medical walking shoes and air cast walker boots.CAM WALKER BOOT SOCKS LINER SIZE: The tube orthopedics socks are unisex for men and women, the maximum size up to 13-15, they are knee high for women, over calf for men. Loose fit design with non binding top, 2 pairs(4 pack) in a valuable pack.LOOSE FITTING AND NON BINDING: The diabetic socks can provide plenty of room for edema swollen thick foot or ankle, non binding top wont cut circulation, the moisture wicking fabric will keep foot dry, also great for elderly diabetes neuropathy sensitive feet.SPECIAL DESIGN FOR REDUCE SKIN IRRITATIONThe surgical foot/leg skin is weak, the walking boot socks are the shelter to your sensitive skin when wearing foot brace or walking boot, walking boot can really agitate your skin. The length of the socks is 21 Inch, it can cover all the calf.SPECIAL DESIGN FOR REDUCE SKIN IRRITATIONThe surgical foot/leg skin is weak, the walking boot socks are the shelter to your sensitive skin when wearing foot brace or walking boot, walking boot can really agitate your skin. The length of the socks is 21 Inch, it can cover all the calf.