This specific piece is an ultralight, highly breathable rain shell. Its core specifications include:Key Technical SpecsFabric Technology: Built with a premium Dry.Q™ 2.5-layer stretch ripstop fabric that feels soft, quiet, and eliminates the rigid crinkle of traditional raincoats.Mobility: Features a 4-way stretch material designed for dynamic movement during backpacking, hiking, or climbing.Venting: Features integrated underarm zip vents to help dump excess body heat during steep ascents.Packability: Highly compressible design that stuffs entirely into its own hand pocket for easy storage inside a pack.