The ideal merino wool baselayer for long, high-output days on your bike, skis or the rock wall, the women's 200 Zone Long Sleeve Crewe is the ultimate activity top. It's made from icebreaker's warm, stretchy 200 Zone Series merino wool infused with Lycra for extra stretch. The 200 Zone features BodyfitZONE construction, which includes 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. The dropped front and back hem enhance coverage.