DESIGNED FOR FORCE. SPEED AND COMFORT. Nike React Metcon resumes the stability and traction of the original training model and combines them with the most comfortable Nike cushioning ever. Take on high-impact workouts and weightlifting with a lightweight, breathable upper and a perfect fit to never give up. The Nike React foam offers lightness and responsive cushioning for high-impact movements such as foot jumps. double under and shots. The lightweight knit design is distributed in areas to ensure durability. comfort and speed. Quick lacing system adjusts instantly for distraction-free training. Rubber tread wraps around the side of the shoe for ideal durability and maximum grip during rope exercises.