Nike In-Season TR 8 Women’s Training Shoe STABILITY IN MOTION. Nike In-Season TR 8 Women’s Training Shoe combines lightweight stability with a flexible outsole that moves with your foot. Dual-density underfoot cushioning and midfoot lockdown make it ideal for circuit training and cardio-heavy workouts. Smooth, closed-hole mesh upper provides durability and comfort. Flywire cables integrate with the laces for midfoot lockdown. Rubber pods in high-wear areas enhance durability.