The Arc'teryx Sentinel AR Jacket provides everything you're looking for in a 3-layer shell, and a few things you didn't even know you wanted. Backed by the power of GORE-TEX, this shell is durable, waterproof, and breathable. A thin flannel backer adds warmth and makes the jacket feel soft and cozy on the inside. The Sentinel comes in a slightly longer freeride cut with WaterTight zips and a helmet-compatible hood to make sure you stay protected from the elements, and your essential gear does too.