The upper is made from up to 85% recycled polyester. The polyester yarn is derived from old plastic bottles, yarn scraps and even t-shirts to make a durable, comfortable and innovative upper material. Upper crafted from 85% recycled materials for breathable comfort. Crater foam midsole combines multiple foam types and Nike grind for stability and Moon bouncing-inspired comfort. Socklike upper construction hugs the foot Lace closure for a stay-put fit Grippy traction sole keeps you grounded