Moleskin comes in pieces much bigger than you need for a blister on the back of your ankle so you need to bring scissors with you to cut it. The advantage over bandaids is that it will stay in place & not bunch or come off as easily as bandaids. I have had great luck with Bandaid's brand blister bandages that come in little plastic cases. But I have small feet & very narrow back of the ankle. They did not work on my 6 foot size 12 shoe 15 year old during football practice last year. The moleskin worked for him.