Flex Weave Engineered Upper: Flex Weave Engineered Upper Featuring An Ultra-Durable Tpu Yarn , A Soft And Comfortable Poly Textile Yarn, And Flexible Elastane Yarn All Woven In The Unique Flex Weave Figure-Eight Construction For Lightweight Yet Structured Upper Featuring Engineered Breathability Zones, Floatride Energy Foam: Provides Lightweight, Resilient, Ultra-Responsive Cushioning Derived From Castor Bean Oil Full Rubber Outsole: Rubber Outsole Provides Traction And Durability. Lift And Run Chassis System: Dome Shaped Tpu Heel Piece That Compresses Under Heavy Load To Create A Solid Platform, Recycled: Made From Recycled Materials.