Offering excellent thermal insulation, the Peter Storm Women's Thermal Base Layer Pants have a close fit and a stretch design making them great for active cold weather pursuits such as skiing and trail running. Features Fabric: 65% polyester, 35% viscose Close fit Stretch design Lightweight and warm long thermal pants from Peter Storm Polyester/viscose blend with brushed reverse - this soft layer retains heat effectively, making them the ideal base for any effective layering system. Fold over hem - creates a comfortable seal around the base of the pants. Recommended activity - hiking / walking / running / snowsports