Amazon.com: Wilsco 100% Waterproof Leg Cast Cover for Showering, Reusable Covers for Leg and Foot Surgeries, Cast Covers for Shower Leg, Cast Bag for Shower, Cast Cover for Showering Foot (Large) :
6 Best Waterproof Cast Covers for Swimming, Showering, and the Beach
How to Shower & Swim With a Cast: Cast Cover Options & More | Performance Health
Cast Covers for Arms, Thumb and Fingers
Curad Leg Cast and Bandage Cover Protector - Allows the user to shower while in a leg cast to protect cast or bandage from getting wet. Need to keep your cast dry
Waterproof Cast Cover for Shower / Arm | DryCAST
6 Best Waterproof Cast Covers for Swimming, Showering, and the Beach