Upgraded One-Piece Design - Our foot ankle ice pack is no need to insert or remove several ice packs like other traditional ice pack wraps or cooling socks, just slipping it on, which is very convenient to use. Fitted heel ice pack wrap around your feet area so you can enjoy soothing when lying on the sofa or bedContain Two Ice Packs for Feet - Come with a ziplock bag to keep it clean. You could rotate them in & out of the refrigerator to ensure cooling time. For feet issues, use one pair together for more great comfortLong Lasting Coldness - Our ice boot for foot and ankle contain 30% more gel than regular ice pack foot to ensure longer lasting coldness and effectively remove foot discomfort. You can also squeeze more gel to where you need it most. Builting with nylon provides penetrating cold and soft lining to prevent frostbite. Place it in the freezer for at least two hours and it is ready for 15-20 minutes cold applicationTwo Sizes Available - Ice pack for feet medium size fits Women's shoe sizes 6.5 to 8.5 US & Men's shoe sizes 6 to 8 US. Large size fits Women's shoe sizes 8.5 to 11.5 US & Men's shoe sizes 8 to 11 US. If you have high arches, we recommend you to go up a sizeFull Coverage for Foot - plantar ice pack wrap provides cold application for feet, heel and ankle. Good for soothing from feet discomfort. With adjustable straps, ice boot provide flexible tightness and desired cooling application