The Ibex Men's Woolies Pro Tech 1/4 Zip is designed for next-to-skin performance, making it our lightest weight base layer, perfect for cool and cold conditions. Crafted with innovative Nuyarn technology, this piece makes merino wool 35% more thermally efficient, 85% more elastic, and 8.8 times more durable than traditional ring-spun merino. The 1/4 zip neck with a raised collar offers additional coverage and versatility, while raglan sleeves and flatlock seams ensure comfort and reduce chafing. Thumbholes provide easy layering under midweights and gloves, and the nylon core adds durability for any adventure.