- REVIEWS
- QUESTIONS

Inspired by our popular Knicker style, the Fernos Insulated Pant is your go-to layer for cold weather cardio, with a large dose of comfort. Whether you're taking a snowy winter run, stacking firewood at the yurt or layering up around a campfire, you'll love these pants for their reliable warmth and undeniable comfort. The soft Relanceâ„¢ Primeflex shell is paired with PeakFillâ„¢ Active Insulation and 50% recycled polyester to guarantee maximum breathability and warmth. Stretch panels and articulation allow you to move freely, and an encased elastic waistband makes these cozy favorites easy to slide on and off if you need to transition throughout the day.
Relanceâ„¢ Primeflex, 50 Denier Microfiber Mechanical Stretch Plainweave, 100% Polyester, 94g/m2 with a PFAS-Free DWR Finish
Relanceâ„¢, 100% polyester Primeflexâ„¢ microfibers offer improved drape, stretch and wicking properties compared to regular polyester fibers. This fabric features a soft hand, bi-component Primeflexâ„¢ stretch, PFAS free DWR and excellent resiliency and strength.
PeakFillâ„¢ 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.
As caretakers of the mountain life, we recognize our responsibility to support organizations and people who share our vision to drive positive change for people and the planet. We’re proud to partner with some tremendous organizations in their missions to responsibly advance outdoor recreation and protect our wild surroundings.
We are committed to building garments that are durable, timeless and continue to perform season after season. After years of research, testing and product development, in 2024 we completely removed PFAS from all of our newly developed products. We remain committed to growing our Preferred Materials usage, which includes organic cotton, recycled materials and responsibly-sourced down and wool, to 75% by the end of 2025.
Our apparel is built to last. As a part of our efforts to reduce waste and keep more gear in the mountains where it belongs, our home-grown gear renewal program allows previously-used items to be traded in, cleaned, repaired and circulated back into use.
Mountain Perspectives | Shifting Terrain: Jacqueline Pollard
In 2023, Freeride World Tour competitor and Stio Ambassador Jacqueline Pollard turned a life-changing fall into an opportunity for growth, connection and community for the next generation of freeskiers.Cover Shot: Two Minutes, Eighteen Seconds
Photographer Jamie Walter had 2 minutes and 18 seconds to make the shot happen. After gambling on a sunny spring day in Maine, weeks of scouting and fighting through the gridlock of nearly 10,000 eclipse viewers flocking to Sugarloaf, his home mountain, the moment arrived.Alaskan Exit Strategy
No adventure in Alaska is a gimme. On a glacial traverse outside Anchorage, Stio Mountain Athlete Nicole Cordingley learned that even the best-laid plans require thinking on your feet—or skis—in The Last Frontier.