Built for high output pursuits, the Arc'teryx Ether Comp Crew Long Sleeve - Boys's provides maximum breathability in super-light, quick-drying fabric. This performance shirt is fashioned with Vivital fabric, which is super durable and pill resistant, to keep your core cool and dry. Fashioned in a trim, athletic fit with flatlocked seam construction, this silky soft Arcteryx Ether Crew is Great for endorphin filled multi-sport, Path Running, or mountain adventures.