The Vortice Shock Absorbing Heel Cup is the perfect replacement part for riders seeking enhanced heel protection. Designed for ST and ST Air boots, this shock-absorbing heel cup offers exceptional impact protection during intense rides. Featuring a specialized shock-absorbing system, it helps reduce the force of impact, providing extra security for your heels. As a replaceable protection part, it ensures your gear stays in top condition, ready for any challenge on the road or track.