Sun, rain, damp and cold – all in one day. It’s a likely story if you're a regular hiker. Cue the Synthetic Insulated Triclimate Jacket. It combines a breathable outer shell with a removable, insulated inner jacket. The outer is made from DryVent fabric which is 100% waterproof, plus there’s taffeta lining on the inside for comfort. The inner jacket is packed with PrimaLoft Black, a synthetic insulation that is warm and packable. Wear both layers together or separately as the weather dictates.