The Ibex Men's Woolies Pro Tech Bottom is a lightweight base layer designed for exceptional comfort and performance in cool to cold conditions. Made with advanced Nuyarn technology, it boosts merino wool's thermal efficiency by 35%, elasticity by 85%, and durability by 8.8 times compared to traditional ring-spun merino. Featuring a super soft, no-ride elastic waistband and flatlock seams for reduced chafing, this bottom ensures all-day comfort. The nylon core and covered elastic waistband enhance durability for any adventure. • Lightest weight base layer ever, perfect for most cool and cold conditions • Super soft, no-ride elastic and flatlock stitching for all day comfort • Covered Elastic Waistband Material & Care • Machine washable • 85% Wool|15% Nylon • Nylon Core for Durability