The Roxy Backyard Pant is a pair of tailored insulated snow pants in 100% recycled polyester, built from a PFAS-free DryFlight 2-layer membrane rated 10K for waterproofing and 5K for breathability, with 60g polyfill insulation. What Our Gearhead(R) Experts Are Saying:"When I add a layer under the pants I loosen the waist adjusters to fit, and when I pull them over my boots the snap on the leg gusset opens wide enough to get through. That's why these are the insulated pants I reach for on a cold, long day."