What Our Gearhead(R) Experts Are Saying:"I throw the Ascendor Light Pull-On in my pack for every shoulder-season mission. It's light, warm for its weight, and the striped Thermic fleece breathes better than anything I've worn. The pullover style makes it layer super clean under a shell."When we're chasing vertical gain in fast-changing mountain conditions, the Ascendor Light Pull-On Jacket from Rab is our midlayer of choice. This piece is all about moving fast and staying comfortable, with its streamlined, lightweight fleece construction offering just enough warmth without the bulk. The Thermic(TM) S fabric combines zones of high and low loft for optimized airflow and moisture management, letting us push through long approaches without overheating. A half-length zip dumps heat quickly when the sun breaks through, while the Matrix(TM) chest pocket adds breathable storage that won't get in the way under a harness or pack. Slim, technical, and built to move-this pullover is made for alpine objectives.