Hit up the gym in this On Men's Cloud X 3 Shoes in Ice / Eclipse. This Cloud X 3 Shoes by On features the re-engineered, 3-layer mesh (made from 90-95% recycled content) offers exceptional breathability, support, and durability / signature speedboard® gives you explosive take offs, every single step. This On Cloud X 3 Shoes is made of 100% recycled Polyester & PES.