Hailing from the Swiss Alps, ON continues to rewrite the running game with the Cloudboom Max. Made for marathon runners of all levels with responsive, max cushioning to help you reach the finish line, the ON Cloudboom Max features an ultralight and breathable build, a supportive upper that moulds and adjusts to your foot's movements, a double layer of Helion™ HF hyper foam for optimal energy and comfort, and glass fiber-infused Speedboard® for efficiency and support on your travels, above a durable rubber sole for maximized grip. ON Cloudboom Max 1 Ultralight and breathable upper Regular, true to size fit Double layer of Helion™ HF hyper foam for energy and comfort Glass fiber-infused Speedboard® for efficiency and support Impact protection and high energy retur Heel cushioning Rubber outsole Weight: 296g