Le Bent Women's Midweight Crew Base Layer TopDESCRIPTION: This midweight base layer top is made from a signature Merino wool and bamboo blend that gives you an impressive combination of thermoregulation and breathability. It delivers serious warmth for its weight, keeping you comfortable both on the mountain and during late afternoon aprs. FEATURES: Crew Neckline Long Sleeves 4 Way Stretch Flatlock Seams Sculpted Panels UPF 50+ Sun Protection Midweight 260gm 62% Bamboo Rayon, 30% Merino Wool, 8%