The Nike workout shoes support every grunt and growl. The trainer has forefoot flexibility and a reinforced heel with extra foam to provide freedom for dynamic movements during plyos and cardio classes. It features a stable base for weights, laser-siped outsole for flexibility, and rounded big-toe side for agility and quickness. It also features supportive cushioning, breathable engineered mesh upper with built-in stretch and flywire cables for a secure fit. The shoes have multi-surface traction pattern and a comfortable inner sleeve for ankle support.