Ibex®'s lightest weight base layer ever, perfect for most cool and cold conditions Nuyarn® is a spinning technology that makes Merino 35% more thermally efficient, 85% more elastic, and 8.8x more durable than its ring-spun counterparts. Merino Wool blend fabric Nylon core for durability 1/4 zip neck and raised collar for additional coverage Raglan sleeves, flatlock stitching, and thumbholes to excel at any activity Next to skin fit Fabric sourced from Australia Garment made in Vietnam Recommended care: machine wash cold, do not use fabric softener, do not bleach, line dry Product Features: Fabric:85% Merino Wool, 15% Nylon Centerback Length:25.75" Ibex Women's Woolies Pro Tech 1/4 Zip Base Layer Top