The ONE^™ SHELL is our lightest-weight shell with high-performance waterproof technology. It delivers state-of-the-art 20K/25K breathable/waterproof three-layer performance. A durable nylon face offers the added comfort of stretch. The interior is laminated with a soft, micro-knit backer. Added pit zips for temperature regulation. The only way we could make it better would be to raise the price. MATCHED BY NO ONE^®