Styled out for warm-weather mountain watersports, this quick-drying board short features ample stretch, UPF 50+ sun protection and 88% recycled materials.

Multi-day river trips, evening SUP sessions or rest-day cliff jumping—the CFS Board Short is a stretchy, all-purpose mountain water short, perfect for summer hikes and shoulder-season surf trips. Newly updated to 88% recycled reSphero™ HO stretch poplin, a water-resistant, quick-drying fabric with four-way stretch and UPF 50+ sun protection, the CFS provides the mobility you need for any aquatic adventures. A hook-and-loop waist closure with an adjustable drawstring helps secure the perfect fit, while flattering feminine styling and 4” inseam make for unrestricted range of motion.

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reSphero™ HO Stretch Poplin, 88% Recycled Polyester, 12% Spandex, 75 denier, 145 g/m2 with Water-Repellent Finish

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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
  • 4-way fabric stretch for maximum comfort and range of motion
  • UPF 50+ provides excellent sun protection
  • Water-repellent finish reduces dry time
  • Mid rise
  • Webbing loop at interior waistband to hang dry
  • Zippered fly with hook and loop at front closure
  • Front hand pockets
  • Zippered right thigh pocket
  • Slip-In left thigh pocket with hook and loop closure
  • YKK® zippers at fly and thigh pocket
  • Drawcord at waistband to customize fit
Weight and Measurements
  • Weight: 4.7 oz.
  • Inseam: 4”, size 4
Other Details
  • Heat transfer Stio® and Pinecone logos
  • Imported
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