Hiit, mountain climbers, squat jumps? No problem. Here's an ultra-flexible training shoe designed for workouts that make you feel good. Whether burpees or box jumps - with the X-shaped Speedboard you can perform all movements comfortably. Made from a pliable nylon compound for better forefoot flexibility during multilateral movements. The Helion super foam midsole provides cushioning underfoot, while additional padding in the heel provides even more comfort. Lateral stability is provided by the midfoot cage and the star lacing system that wraps securely around the foot.