The Stio Environ pant is a warm mid-winter inbounds pant that maintains the versatility for spring ski touring. It is durable, stylish, and loaded with storage compared to most other pants in this test. Just make sure to try them on first as sizing may be a tad tricky.
Materials Stio’s proprietary Dermizax 3-layer technology compliments a 100% polyester backing and Dermizax membrane to effective breathe out interior moisture while keeping water out with a DWR finish. The fabric has been given a 50 denier durability rating.
Comfort The Environ pant is generally comfortable and articulates well. The weight of the pant and scuff guard is noticeable when taking large steps up steep slopes, compared to other pants in this test.
Temperature Control The pant runs warm, which is great for mid-winter inbounds days or cold days in the backcountry. Half-length thigh zips with waterproof seals provide just enough air to cool you off during a spring tour. On the hottest of hot days however, a lighter pant may be prudent.
Features/Functionality Velcro waist adjustments and belt loops allow for maximum adjustability in the waist. Dual hand warmer pockets and dual front thigh pockets compliment dual back pockets with zippers and Velcro flaps to help keep snow out. With six pockets, the Environ provides more storage options than any pant in this test. Ankle zips and button sealed interior gaiters round out the pant’s feature set.
Fit The Environ seems to run a bit large – pant leg length may force customers to purchase a size down, resulting in constrictions around the waist/hip area.
Skier, runner, and author Ben Conners has been exploring the Rockies since he was a kid. Growing up in the Vail Valley, Ben spent his winters carving turns and summers backpacking in the Holy Cross Wilderness. Ben authored a guidebook on ski mountaineering Colorado’s high peaks and lives with his wife in south-Denver.