A stretchy merino baselayer shirt ideal for long, high-output days on the bike, trail, skis or the rock, the 200 Zone Long Sleeve Crewe is the ultimate active baselayer top. The Zone features our BodyfitZONE construction, which combines lightweight stretch merino wool jersey fabric with strategically placed merino mesh panels to improve ventilation and help regulate temperature during stop-and-go days on the trail or in the mountains. Flatlock stitching eliminates chafing during day after day of dynamic motion.