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Karuishi® stretch fleece creates a smooth, resilient surface and a warm, fleecy interior for a half zip that wicks, breathes, and maintains comfort mile after grinding mile.

Our athletically fit—stretchy, wicking and breathable—fleece feeds on mountain town motivation for constant fitness. High-performance Karuishi® four-way stretch fleece provides free kinetic range, yet also resists wear due to a smooth circular-knit nylon surface. It’s character trends more outdoor athlete than personal trainer since it shows exceptional range as an all-season, all-activity mid-layer for any venue from wind-hammered ridgelines to frosty spring creeks. The trim fit layers easy yet still rolls with casual daily confidence when ducking into the store or grabbing a breakfast burrito.

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 Image Karuishi®
Karuishi® Stretch Circular Knit Fleece, 44% Nylon, 43% Polyester, 13% Polyurethane, 156 g/m2 with Brushed Back and Wicking Finish

Karuishi® is a technical fleece concept based on lightweight warmth and durability. A special 2-layer knitted construction creates an abrasion-resistant, anti-pilling face and a lofty, brushed next-to-skin backing. The end result is a high volume, lightweight insulator that breathes exceptionally well.

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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
  • Stretch nylon blend fleece offers comfort and durability
  • Knit structure with brushed back offers warmth and breathability
  • Underarm gusset offers full range of motion
  • Flatlock seams maximize comfort and ease of layering
  • Lightweight stretch mesh chest pocket bag
  • YKK® coil zipper at center front
  • Kissing welt interior zipper finish for added comfort next to skin
  • YKK® reverse coil zippered chest pocket for safe storage of essentials
Weight and Measurements
  • Weight: 8 oz.
  • Center Back Length: 27 3/4" (size M)
Other Details
  • Heat transfer Stio® and Pinecone logos
  • Imported
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