"The Columbia Saudan Pro 3L Shell builds Omni-Tech Pro waterproofing into a fully seam sealed, 100% nylon 3-layer construction rated to 30,000mm waterproof and 30,000g breathability. Bonded seams at the hem and cuffs close off the usual points where weather gets in, and a wire brim hood holds its shape against wind instead of collapsing over the face. A Cohaesive cord lock system keeps that hood dialed in with one hand, even with a glove on. What Our Gearhead® Experts Are Saying:""I run the underarm vents open on the approach and seal the TPU cuff tabs down tight once the wind picks up higher on the route, so I never have to stop and dig through a pack to adjust."""