Rubber sole Reductive design (straight-edge cuts, meaning less waste) creates a sleek look full of angles. Originally designed for performance running, Air cushioning at the heel adds unbelievable comfort. Updated rubber Waffle outsole adds traction, durability and a nod to sport heritage. Taking the classic look of heritage Nike running into a new realm, the Nike Air Max Pre-Day brings you a fast-paced look that's ready for today's world. A true nod to the past with a design made with at least 20% recycled material by weight, it keeps the retro track aesthetic alive. A new Air window energizes the look, mixing head-turning style with unbelievably soft cushioning.