What Our Gearhead® Experts Are Saying:"This is one of those base layers I forget I’m even wearing—which is the goal. It’s soft, ultra-light, and breathes like a champ. The DotKnit™ fabric wicks away moisture without feeling clammy, and the seamless fit makes it a killer piece for long missions or layering under shells."The Summit Pro 120 Tight is built for long days on the move in alpine environments where moisture management is just as important as insulation. Designed with DotKnit™ technology, this ultralight base layer actively moves moisture away from the skin using an engineered dot pattern that channels sweat outwards—keeping us dry, warm, and comfortable when we're on the approach, skintrack, or bootpack. The double-knit construction made from 100% recycled polyester delivers a soft next-to-skin feel with just enough stretch for full mobility. Features like the exposed elastic waistband and minimal flatlock seams ensure all-day comfort, whether worn alone in the hut or layered under technical outerwear in the mountains. The Summit Pro 120 Tight keeps us dry where it counts most.