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Streamlined for uphill grinds or multiday roadtrips, Robic® ripstop recycled fabric is durable, while its own pocket converts to an integrated stuffsack for storage or travel.

Designed for alpine athletes who log miles at a fast clip, our 25L mountain pack is streamlined for uphill grinds, ridgeline scrambles or epic car-to-car rides. Drop-in bottle pockets allow for quick stash hydration while vertical loops provide a dedicated space to secure trekking poles. Shoulder strap daisy chain attachments organize external gear while also enabling proper sternum strap and buckle placement. Recycled, water-repellent 100-denier Robic® triple ripstop fabric features an Ultra Tear Strength coating for increased material strength. An anatomical honeycomb mesh back panel enhances breathability on hot stretches of trail. Packs into its own internal stuff pocket for storage or travel.

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Robic®, 100% Recycled Nylon Ripstop, 100d, 100 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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  • Lightweight mesh back panel for ventilation
  • Bound interior seams
  • Daisy chain for accessory attachment
  • Key fob
Straps and Handles
  • Webbed carrier handle
  • Ergonomic shoulder straps with adjustable sternum strap
  • Zippered security pocket for easy access to everyday essentials
  • Drop-in water bottle pockets
  • Interior security pocket doubles as stuff sack
  • YKK® zippers with lightweight zipper pulls
Weight and Measurements
  • Weight: 16 oz.
  • Dimensions: 18"H x 10"W x 8"D
Other Details
  • Reflective detail for visibility
  • Screenprint Stio® logo
  • Imported
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