Crafted from New Zealand merino wool, the Ibex Boys's Zepher Zip T-Neck serves as an excellent first layer for skiing, mountaineering, boating, or under a sweater when the temperature drops closer to home. An 11 inch zip allows you to vent excess heat, while the 2.5 inch collar traps warmth when the zipper is pulled all the way up. Natural elasticity adds to the Zepher's comfort when stretching, which also lends to the shirt maintaining its like-new shape after extended wear. The Ibex Boys's Zepher Zip T-Neck is machine washable for easy care, and the natural antimicrobial properties keep the stink to a minimum, even after successive days of 24 hour wear in the backcountry.