Product DNA What's It Do? These are your new favorite warm-up trousers for pretty much everything you do—they're light, comfy and are super-soft on the inside. The Fundamentals Loose: Fuller cut for complete comfort Lightweight, ultra-comfortable cotton-blend fleece Soft, brushed inside traps warmth Ribbed waistband with external drawcord Open hand pockets Inside leg: YMD 20 cm (+/- 3 cm per size) 80% Cotton/20% Polyester Imported