From high alpine trails to the climbing gym, the Butter(TM) Tight is a versatile, buttery soft base layer that pairs perfectly under a shell and holds its own any time you need a feel-good, movement-capable tight. With its UPF 50, anti-odor, and moisture wicking fabric, combined with next-to-skin fit and freedom of movement, there is no trail, no climb, or backcountry paradise you'd want to explore without it.