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Alpine light and highly breathable, Polartec® Alpha® Active insulation warms yet allows steam to escape during early morning skins and spring thaw runs.

This technical alpine insulator is fit for pushing the pace in cold weather, from early mornings on the skin track to early season trail runs. Polartec® Alpha® Active 60g insulation warms the core yet allows steam to escape quickly due to the advanced interior technology. Streamlined with fast-forward details such as low-pro stretch cuffs, liberating stretch underarm panels and a quick-draw, easy-cinch hood, the compressible design crams easily into hydration vests or lumbar packs. For extra protection, the stretch nylon shell is treated with a DWR finish that cuts the wind when moving fast or pushing toward higher elevations.

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 Image Meridian™
 Image Polartec® Alpha®

Meridian™ AP, Stretch Mini-Ripstop, 100% Nylon, 20 denier, 49 g/m2 with DWR Finish

Meridian™ AP is a 20 denier Mini-Ripstop Nylon with mechanical stretch by construction. DWR makes this fabric both highly water resistant and extremely breathable while maintaining excellent wind resistance.


Polartec® Alpha® Active Insulation, Synthetic Knit Insulation, 54% Recycled Polyester 46% Polyester, 60g/m2

Alpha® is a 100% polyester knit active insulation that eliminates the need to shed layers while on the move. Designed to regulate core body temp during dynamic and static activities, Alpha® technology keeps moisture vapor moving freely through the fabric, increasing the overall air exchange and speeding up dry times. A DWR coating provides water resistance, increasing this fabric's performance in the most challenging environments.

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Climate Neutral

We completely offset the footprint of each order through our commitment to being climate neutral. As part of our mission we value being good caretakers of the mountain life and protecting the places where we play.


We are committed to building garments that are durable, timeless and continue to perform season after season. Over 50% of our product line incorporates preferred materials, which include organic cotton, recycled materials and responsibly-sourced down. We are committed to growing our preferred materials usage to 75% by 2025.

Trade-In Program

We believe a circular commerce system will design out waste and pollution, allowing for used clothing to be renewed and put back into use. Stio Second Turn™️ is our gear renewal program that allows customers to trade in and shop used apparel.

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Fabric Details
  • Lightweight, packable, insulated midlayer
  • Gusseted underarms without insulation for mobility and breathability
  • Stretch woven cuff for comfort and performance fit
  • Slight drop hem with dual hem adjust
Hood and Pockets
  • Adjustable low profile hood with structured hood brim for customized fit
  • Chest and hand pockets with hidden zippers
  • YKK® Vislon® front zipper
  • Custom Stio® zipper pulls
Weight and Measurements
  • Weight: 12 oz.
  • Center Back Length: 28 5/8" (size M)
Other Details
  • Reflective Stio® and Pinecone logos for visibility
  • Imported
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How We Wear It