Just when they think you couldn't get any faster you do. Ultra Ultimate Cage takes its signature speed and acceleration to the next level. The application of Pwrtape draws from the anatomy of the human foot to provide natural support for quick changes of pace and direction. Dual-density Speedplate makes it official Ultra is Too Fast for Them.Features:- The upper of the shoes is made with at least 30% recycled materials.- Low-cut slip-on construction.- Lightweight mesh upper- Low-profile multi-studded rubber outsole.- Pwrtape provides natural support and stability for quick changes of pace and direction- Knitted slip-on construction for a snug fit- Lightweight removable sockliner with NanoGrip technology keeps the foot from slipping inside the boot- Regular to narrow fit