A lightweight baselayer crafted from Artilect's unique Nuyarn merino wool. Nice and light and perfect for all seasons; as an outerlayer in the summer or layering up for winter use. Nuyarn offers all the benefits of Merino wool but with a superior stretch and durability. Unlike traditional core spun or ring spun Merino wool, Nuyarn utilises a patented twist free spinning method using less chemicals and offering up superior performance. Warmth-to-weight ratio is unmatched and It's super stretchy, soft, dries quicker and looks great. The Boulder Crew has a nice 'easy' fit with long sleeves and useful thumb holes. An essential piece of kit for any outdoor activity. Features Superior Bluesign® 125GSM Nuyarn merino offers extra loft for an unmatched warmth-to-weight ratio 5x faster drying Remarkable long-term durability Superfine 18 micron non-mulsed Australian merino Wool for maximum softness and wearability Incredible stretch and recovery Easy Fit offers a modern fit with full coverage Targeted eyelet placements for increased breathability No-chafe flatlock seams Gusseted Armpits Machine Washable Hang-Dry Loop