Ezeefit Ankle Booties are great anti-blister protection. These Ultrathin Ankle Booties with a memory core adds no bulk. They are easy to pull on and conform to your foot to create a friction barrier against any rubbing from your footwear, yet unlike adhesive products they stick to your skin wet or dry for all day protection. Wear instead of or inside your sock. Reversible, Black to Tan. Available in six sizes. For best results choose the correct size for a snug fit. Ezeefit makes three thicknesses to choose from. SIZE GUIDE: XX-Small fits Kid's 11-13 X-Small fits Kid's 1-3 Small fits Kid's and Women's 4-6 Medium fits Women's 7-9, Men's 5-7 Large fits Women's 10-12, Men's 8-11 X-Large fits Men's 12-14