What Our Gearhead(R) Experts Are Saying: "This tee has become my go-to for big missions. The wool keeps me warm when I stop, the polyester dries fast when I'm moving, and the raglan sleeves make it super comfortable under a pack."Whether we're climbing alpine ridgelines, skinning through cold mornings, or pushing the pace on a long approach, the Trilogy Wool Long-Sleeve Top delivers the balance we need between warmth, breathability, and fast-drying performance. Its 50/50 merino wool and polyester blend regulates body temperature in changing conditions, wicking away sweat while staying soft against the skin. With a slim, active fit, raglan sleeves, and seamless underarm panels, this long-sleeve moves with us comfortably, even under harness straps or a heavy pack. Lightweight at just 175 grams, it layers easily yet stands strong as a dependable next-to-skin piece for mountaineering, ski touring, or any high-output mountain pursuit.