Stand up to the most daunting weather reports and midwinter chills with our Fernos Insulated Pant. This reliably warm and highly breathable insulation midlayer laughs off sub zero days with a Relance™ Primeflex shell and PeakFill™ Active Insulation. The medium cut is designed for an on-the-go lifestyle, be it a pick-up pond hockey game or chasing the kids up the trail. Stretch panels and full articulation allow for complete freedom of movement while thoughtful design details like an encased elastic waistband, zip fly and drawcord make for easy on and off—although the Fernos is the type of insulated comfort you won't want to shed anytime soon. Shell and Lining Relance™ Primeflex, 50 Denier Microfiber Mechanical Stretch Plainweave, 100% Polyester, 94g/m2 with a PFAS-Free DWR Finish Relance™, 100% polyester Primeflex™ microfibers offer improved drape, stretch and wicking properties compared to regular polyester fibers. This fabric features a soft hand, bi-component Primeflex™ stretch, PFAS free DWR and excellent resiliency and strength. Insulation PeakFill™ Active Insulation, 50% Polyester, 50% Recycled Polyester, 40g/m2 Our PeakFill™ Active proprietary insulation balances warmth and breathability to maintain lasting athletic comfort across the entire conditional range. Designed to keep core temps regulated, the synthetic fiber fill draws on a spiral filament structure to enable greater stretch, faster recovery and quicker dry times than traditional lofted insulation whether rolling slow at valley level or working hard up in the alpine.