Train hard and push your limits in the PWR NITRO™ SQD 2. NITRO™ SQD technology gives explosive energy and all-around support. ***GRIP traction grips any surface. Unlock peak performance and smash through plateaus. These training shoes unleash your power. FEATURES & BENEFITS The upper of the shoes is made with at least 20% recycled materials NITRO™ SQD: Innovative dual density NITRO™ SQD midsole combines best in-class cushioning and rebound with all around support – ideal for quick first step and explosive take-off ***GRIP: Durable performance rubber compound designed for all-surface traction Regular fit Heel support system Lace closure *** branding details 61% Textile, 39% Synthetic for men and women.