The Men's Arcteryx Delta Jacket - This is an essential piece of any serious mountain kit. Inspired by climbers, then refined to handle virtually anything, the Delta Jacket’s a go-to when thermal efficiency, stretch, and all-mountain versatility are required. A new type of fleece, a new level of performance. Still soft, still breathable, it’s elevated with an innovative octagonal hollow-core construction for a much better warmth-to-weight ratio and a smooth face for easy layering and improved durability. A trim fit patterned to move and low-profile seams that reduce chafing combine to create a technical, comfortable fleece for all your mountain missions. Available at Travel Country Outfitters.