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Ward off chills and charge all day with our premium, lightweight merino blend that delivers excellent thermal regulation, wicking and breathability with an extremely soft feel.

Once you get a feel for this tight’s lightweight, supersoft comfort, you’ll never start a cold-weather mission without it. The foundation of its comfort is our signature PeakWool™ Lightweight fabric, a single-knit blend that combines the moisture wicking, odor management and thermal regulation of merino wool with the softness, durability and stretch of synthetic fibers for peak performance. Flatlock seams and a smooth, low-profile waistband minimize chafing and slide easily under your outer layer of choice.

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 Image PeakWoolâ„¢
PeakWoolâ„¢ Jersey, Single Jersey, 62% RWS-Certified Merino Wool, 25% TENCELâ„¢, 13% Recycled Nylon, 150g/m2

PeakWoolâ„¢ Single Jersey is a lightweight fabric constructed with Merino Wool, TENCELâ„¢, Recycled Nylon and Spandex. The natural properties of Merino regulate body temperature, keep odors at bay and manage moisture to keep you dry. The addition of synthetic fibers increases softness, adds strength and elevates its wicking properties. PeakWoolâ„¢ excels in cold temps by keeping your core warm and dry, while enabling heat transfer when the tempo picks up.

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Partnerships

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.

Materials

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 and to completely eliminating PFAS from our garments by 2025.

Stio Second Turn®

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.

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Fabric Details
  • Hybrid synthetic and merino blend moves moisture away from the body and dries quickly
Construction
  • Flatlock seams maximize comfort and ease of layering
  • Embossed brushed elastic waistband with Stio's motto to "Let The Outside In"
  • Action gusset for range of motion
Fit and Measurements
  • Form-Fitting: A next-to-skin design that hugs the natural lines of the body
  • Inseam: 28 1/2" (size S)
  • Weight: 5.3 oz.
Other Details
  • Heat transfer interior labels for comfort
  • Heat transfer Stio® and pinecone logos
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How We Wear It

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