Light as a feather, the Mavic Helium H20 jacket stands alone in the packable, waterproof jacket category with its close anatomical fit. The extremely lightweight Dura Lite Rain SL fabric provides exceptionally high weight-to-protection ratio and is fully waterproof and wind resistant, while remaining soft feeling with light elasticity. The fabric is also highly breathable, keeping you dry by expelling excess heat from the core region. The full-length asymmetrical zipper eliminates chin irritation and allows you to put your head down and hammer. Mavic's Ergo Cuffs stop water leakage at the sleeves and reflective highlights increase lowlight visibility.