The Nike Hyperdunk 2017 Basketball Shoe features the latest revolution in basketball cushioning: ultra-responsive Nike React foam designed to help you play harder and go further. Springy Response Ultralight, durable Nike React foam delivers a soft, springy sensation underfoot, helping keep you comfortable through to the final buzzer and beyond. Sock-like Fit A half inner sleeve contours to your foot like a sock for a snug, comfortable fit. Traction The rubber outsole supports your pressure points while delivering traction in exactly the right places.