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Wide waistband comfort, higher rise coverage and a full-length crop show a functional-yet-flattering fit. Left hip security and right thigh stow pockets stash items.

Long runs and race days deserve a tight built for endurance. Our athletic design finds inner strength from a nylon/spandex fabric that is tough enough to withstand brush, formulated to enhance wicking and treated to reduce odor whether grinding out a tough training run or sweating through a sufferfest.

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 Image Fortis™
Fortis™ Stretch Interlock, 69% Nylon 31% Spandex, 200g/m2

Fortis™, built with stretch interlock technology, is an extremely flexible nylon/spandex fabric. Its sueded finish offers a soft handfeel, while moisture management and an anti-microbial treatment improve comfort and reduce odor during any active pursuit.

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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
  • Nylon spandex blend with moisture management and antimicrobial treatment (for quick wicking and odor control)
  • Athletic design ideal for aerobic activity
  • Wide waistband for comfort
  • Stash pocket at thighs and back waistband
  • YKK® semi-locking slider at thigh pocket for security
Weight and Measurements
  • Weight: 7 oz.
  • Inseam: 26"
Other Details
  • Reflective heat transfer Stio® logo
  • Imported
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