Relentless Strikeforce No-Turn Bell Boots. Superior boot combines new technology with savvy design to provide serious overreach protection. In addition to the toughest strike plate, cutting edge materials help reduce “rebound,” the tendency for the boots to jump when they hit the ground. A new, wider cuff works in tandem with the no-turn bulb to reduct rotation. Overreach panel combines double-layered foam with Kevlar to absorb and deflect impact An additional layer of foam has been added to the interior side wall to protect against crossover injuries Constructed from 2520 denier ballistic nylon for the ultimate durability Reinforced bottom binding reduces rebound and extends boot life.