The Zone Long Sleeve Half Zip delivers the warmth and benefits of merino wool needed for active days on the ski slopes, mountain trails, or for busy days in the city. This half-zippered top has Icebreaker’s BodyfitZONE™ construction, which combines lightweight 200g stretch merino wool with strategically placed merino mesh panels. The stretch panels help regulate body temperature during high-output activities, while the deep half zipper allows for rapid ventilation when you’re moving fast, on-or-off the ski slopes.