Combining exceptional moisture management with performance stretch and next-to-skin comfort, the Phasic Evolution Crew is perfect for backpacking and day hikes. The lightweight, quick drying Phasic(TM) FL-X bi-component fabric actively pulls away moisture and provides UPF 50+ sun protection. Gusseted underarms elevate freedom of movement, and the trim fit keeps the fibres close to the skin for improved wicking performance. A front graphic reflects the Arc'teryx design commitment: Evolution in Action. Sizes: XS, S, M, L, XL, XXL Weight: 95 g / 3.4 oz Fit: Trim fit Activity: Hiking / Trekking