When a hardshell is too much and a midlayer is not enough, the Kor Preshell Pullover is the layer you've been missing. It's both weightless and water-resistant durable and pliable roomy and stows in its own pocket. Call it an ultralight softshell or a super breathable wind shirt, but we just call it the do-it-all stretch layer for cool-weather trail runs, aerobic ski tours, big alpine rock routes, and...well, just about everything. Lightweight Pertex Quantum Air 20D Stretch Ripstop nylon. Packs into interior pocket. Half-zip closure at front.