ZenToes moleskin blister prevention sheets are a must-have essential to keep in your first aid kit. Breaking in a new pair of heels or sports shoes? Our 4 1/8" x 3 3/8" sheets can be custom trimmed down to any size pieces or shapes to protect tender areas where your shoes might cause painful rubbing. Our durable and soft cotton flannel moleskin conforms to the shape of your feet to provide an all-day barrier of protection from friction. It can also be used instead of blister bandages; just cut a hole in the center of the pad, and apply around the blister to relieve pressure from the surrounding skin.