Featuring water-repellent, UPF 50+ Conflux™ moisture wicking fabric, and offering comfort and airflow for layering over your favorite tank, weekend hikes and evenings on the riverbank.

Combining colorful mountain-inspired style with enough technical capabilities for hikes, bikes or extended raft trips, the Women’s Sidley Shirt is a reliable summertime staple. The Sidley’s Conflux™ fabric is a soft blend of nylon and polyester that wicks moisture, dries in a flash and features UPF 50+ sun protection—perfect for sunny summer days on the trail or the river. With the ability to layer over your favorite tank, the Sidley offers ample comfort and airflow, while the extended back hem improves coverage while riding. Pearl snaps down the front, a rear pleat and button detailing add a feminine touch.

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 Image Conflux™


Conflux™, 54% Nylon 46% Polyester, 85 g/m2 with water-resistant finish

Conflux™ is a nylon/poly blend with a water resistant finish, mechanical stretch and a UPF 50+ rating ideal for increased protection in sun, wind and waves. The soft, lightweight fabric with comfort stretch has a great drape, manages moisture and repels light precipitation.

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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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  • Water-repellent finish reduces dry time
  • UPF 50+ rating for excellent sun protection
  • Mechanical stretch offers comfort and range of motion
  • Custom Stio® yarn dye plaid with pearl snaps at the center front
  • Button closures at the collar and cuffs
  • Modified shirttail hem with button adjustment wears well tucked in or out
  • Adjustable cuff with tab allows for easy stay put roll
  • Weight: 7 oz.
  • Imported
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