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A technical tank with dynamic wicking and cooling material for trail running, mountain biking and overnight trips to the backcountry.

When you're focused on sport and trail, performance has to come first. This straight-cut tech tank shares that same straight-ahead mentality, whether logging high-intensity miles on foot or on the bike or regaining focus with mountain yoga. Built with Floe™ fabric—a dynamic wicking and cooling material—that incorporates stretch flex to move with you and accelerates its performance as body core temps rise. An anti-odor treatment keeps the top fresh during high effort. Reflective logos add visibility during those sunset or sunrise pushes and minimal seams make for a chafe-free experience.

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 Image Floe™
Floe™ Polyester Stretch Heather, 95% Polyester, 5% Spandex, 150 g/m2 with HeiQ Fresh and HeiQ Smart Temp Finishing

Floe™ fabric technology wicks moisture, dries quickly and provides an anti-microbial treatment and UPF 15+ sun protection. The moisture management keeps you cool and comfortable when you're working hard, while its odor control allows you to play more and wash less. 

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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 performance fabric, with HeiQ Fresh and Smart Temp technology
  • Controls odor and improves thermoregulation
  • Flatlock seams for low-profile construction
  • Bonded neck tape
Weight and Measurements
  • Weight: 3.5 oz.
  • Center Back Length: 24" (size S)
Other Details
  • Reflective logos
  • Imported
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How We Wear It