A technical tank with dynamic wicking and cooling material for trail running, mountain biking or yoga.

When you’re focused on sport and trail you need to think performance first. Our straight-cut tech tank shares that same straight-ahead mentality—whether mountain running, mountain biking or practicing mountain yoga. Built with Floe™ fabric—a dynamic wicking and cooling material—the piece accelerates its material performance as body core temps rise. Bound armholes, back darts and a subtle drop tail focus on comfort, while reflective stitchwork adds visibility during those sunset or sunrise runs.

Show More
 Image Floe™


Floe™, 100% Polyester Heather Jersey 145 g/m2

Our 100% polyester 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. 

Show More


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.

Show More


  • Lightweight performance fabric with moisture management and cool to the touch feel
  • Sueded face
  • Flatlock seams for next to skin comfort
  • Custom crewneck construction
  • Overlock interior on shoulder seams for enhanced comfort
  • Drop tail hem with split seam construction for added coverage and range of motion
  • Reflective hits on front and back of garment for visibility
  • Reflective heat transfer labels
  • Imported
Show More