There's nothing more versatile in a first aid kit than an elastic bandage. It helps reduce swelling and pain from a sprain, or to immobilize a splint after a broken bone or severe sprain. It's a good idea to keep a few extra rolls in your gym bag or car glove box.
Blue-side Disposable Medical High Stretch Elastic Bandage with ISO13485 CE. Usage: Foot and Ankle Keep the foot in a normal standing position, wrap it from the inside out from the sole of the foot.