Firm foam outer shell is coated with a vinyl, closed-cell elastomer to make it waterproof. Gas sterilize to reuse. Inner liner is made of a hollow-core siliconized fiber. Liner's cover is cotton polyester. It resists body stain, is hypoallergenic and radiolucent. Machine washable using standard detergent. Flame-resistant liner can be used by itself unless there is foot drop.
Fits right or left foot.