Beautiful, soft, and truly versatile, the Ibex Girl's Zepher Zip T-Neck is a great fit If you choose to wear it on a weekend cross country ski outing or under a sweater at the office. A midweight baselayer Built for next-to-skin comfort in cold conditions, the New Zealand merino wool fabric is entirely itch-free. In fact, this natural fiber offers temperature regulation for a wide range of comfort, antimicrobial properties that discourage odor build-up, and natural stretch and recovery that maintains the garment's semi-fit shape. A 9 inch zip holds precious warmth or vents as you heat up.