Easy to Put on and Off: No retaining ring, soft and snug material allows this waterproof foot cast cover to be easily pulled on and off without causing discomfort, helping maintain blood circulation. Adult Size: fits foot and ankle circumference between 12" to 20" (30.5 to 51 cm). Soft and Comfortable Watertight Seal: The watertight seal is made of neoprene composite elastic fabric with enhanced elasticity and softness, applying minimal pressure at the seal for improved comfort. High-quality & Stretchable: The seal is constructed with medical-grade silicone material and offers high elasticity to accommodate most foot sizes for men and women. Suitable for use during showering, bathing, or outdoor activities while recovering from injuries, surgeries, accidents, or medical conditions such as cuts, rashes, burns, skin issues, wounds, and scratches. Comfortable & Easy to Use: Features no bulky plastic diaphragm, minimizing restriction to blood flow. The self-sealing, highly elastic opening allows for easy and pain-free application and removal. Designed to fit both slim and larger legs without risk of tearing. Smart Improvement Over Previous Designs: Compared to other foot protectors on the market, this foot shower cover helps prevent aggravation of injuries during application or removal. It is convenient to use and does not feature bulky seals. Helps avoid restricting circulation. No tapes or fasteners required.