18808 Arc'teryx Women's Motus Crew Short Sleeve Created for high output activities on warm weather days, the Motus crew is optimized for versatility and performance while trail running, trekking or rock climbing. The Motus is anatomically patterned and has gusseted underarms for exceptional freedom of movement. The trim, next to skin fit, stretches with the body, and the longer hip length cut provides added coverage and layers well under a hipbelt or harness. Made of Phasic SL, an advanced bi-component fabric that wicks moisture, the Motus dries quickly, and disperses odors.