Here is a pattern for a soft washable ice pack cozy. I used a silk bamboo to give it the softness and strength it needed for the task at hand. The cozy has a flap versus a button. I can’t see wanting a button in my face or pressing against my knee or ankle if I am already in pain! This pattern works perfectly with a standard 3M Nexcare Reusable Ice Pack that can be purchased at any popular pharmacy or grocery store.