The Patagonia Capilene 4 Expedition Weight Pants are the thickest and warmest baselayer in the Capilene® family. Polartec® Power Dry® High Efficiency™ fabric has a super-soft, stretchy feel designed with a smooth jersey face that glides beneath layers. This baselayer breathes, wicks perspiration, and dries in a flash, but also insulates well beneath layers at 20,000 feet for weeks on end.
3.8-oz Polartec® Power Dry® High Efficiency™ Fabric Solids - 92% recycled Polyester / 8% Spandex | Heathers - 91% Polyester (30% recycled) / 9% Spandex
Polygiene® permanent odor control
Polartec® Power Dry® High Efficiency™ fabric is designed with a smooth jersey face for easy layering
Open grid next to skin provides superior warmth, breathability and moisture-wicking performance
Spandex added for stretch and ease of movement
Elastic waistband is brushed for next-to-skin softness.
Gusseted crotch for unimpeded mobility