Sage · Men’s Second-Skin Thermal Base Layer

Built with Black Feather's heat-reflective structure: a skin-friendly brushed inner face, a still-air insulation core and a smooth knit outer shell that returns radiant body heat. Traps warmth without bulk, wicks moisture, and stays soft after 3,000+ anti-pilling tests. - Fabric: 92% polyester / 8% elastane double-brushed knit - Comfort range: tested down to -20°C - Flatlock seams, tag-free label, machine washable at 30–40°C - Made for long winters, office days and quiet weekends