Lightweight windproof water-repellent insulation that's compressible warm and earth-friendly are all found in the Patagonia Micro Puff Pants.
Predawn starts and forced bivies have a way of demonstrating why serious backcountry users love the Patagonia Micro Puff Pants. Lightweight and soft their high-loft synthetic insulation provides exceptional warmth comfort and stuffability. It won't wilt in the wet like other lofty insulation so you can push through deep snow or freezing rain without hesitation. The durable shell fabric adds wind and water protection and we now make the shell lining and insulation more earth-friendly by using recycled polyester content. Details include: a zip fly; DWR (durable water repellent) full side-zips with snap closures at the cuffs; a partially elasticized waist with hook-and-loop adjustment tabs; articulated knees; and reinforcements at the seat and knees. Loose fit slides easily over baselayers.