MYFIT Footies Heel Lock 2mm are designed to lock your heel in the skate and prevent heel lift. The Myfit Footies range is designed to protect the skater's feet in the high-stress ankle and Achilles area and prevent blisters that are caused by friction. They are made from highly resistant SBR material sourced from Japan. The high-strength Shock Protection Cushion (SPC) material, located behind the ankle in the Achilles tendon area, is 3 mm thick and locks into the foot just above the heel. Flatlock stitching ensures a comfortable fit. Footies should be washed by hand only. They come with a 2mm thick material and low cut and could be used in all kinds of inline skates or roller skates when an improved heel lock is needed and to add comfort. MYFIT - upgrade your ride