Sometimes the difference between staying in and going out comes down to your wardrobe, and this item will give you more comfortable days in the saddle than any other shoulder season gear you own. This triple-layer, four-way stretch jacket is completely windproof and highly water resistant. It’s a three-season foul weather piece that we consider weatherproof, thanks to our proprietary PI Dry treatment, which causes water to bead up on the surface and run off before it has a chance to soak through the fabric and membrane. We bond seams at the cuffs, neck and hem to reduce bulk and keep it form-fitting sleek. It protects like an insulated rain jacket, but fits like a long-sleeve jersey. Men's PRO AmFIB Shell