The Airblaster Merino Ninja Suit replaces a standard two-piece base layer with one seamless system, so there's no gap at the waist and one less thing to pack for a trip. A merino-rich stretch blend is built to dry faster and hold up longer than merino wool alone, wrapped in a 7-panel hood that seals in warmth around the face. A hip zip solves the one-piece base layer's usual bathroom problem, and a reinforced crotch gusset keeps the suit moving through a full range of motion without pulling at the seams. What Our Gearhead(R) Experts Are Saying:"I wore this as my only base layer on a multi-day trip, rinsed it once in a sink, and it was dry by morning, which is the exact test a travel base layer actually needs to pass."