GSI Outdoors Boulder Flask


GSI Outdoors Boulder Flask

Your favorite beverage can now go anywhere and take any fall with the sleek bumper flask. The Boulder Flask holds 10 fl. oz., has a shatter-resistant body with bumper and a hinged silicone cap.

  • Lightweight and eco-friendly co-polyester construction 
  • Shatter-resistant body and grippy, silicone bumper 
  • Wide mouth provides easy filling, pouring and drinking
  • Impossible to lose, easy to open hinged top with silicone grip
  • Color: Graphite
  • Suggested use: Ultralight backpacking
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In 1985, brothers Don and Ian Scott and sister Kathy started the GSI Outdoors® company in San Diego and then moved to Spokane, Washington in 1995, where they have been ever since.

In 2001, GSI Outdoors started distributing outdoor related gifts under the name of Outside Inside. What began as a small distribution company selling blue enamel tableware has expanded into the design, manufacturing, sales and marketing of an innovative array of outdoor cookware and a whole range of eating and drinking products that are technical, innovative and fun.

GSI Outdoors is in the business of making cookware and dining products that adapt the comforts of home to active outdoor lifestyles at the campsite, base camp and anywhere in between.
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GSI Outdoors Boulder Flask

SKU #:
UPC #:
10 fl. oz.
6-1/2"H x 3-3/4"W x 1-1/8"D
4.3 oz.
Copolyester plastic & silicone
10 fl. oz. 6-1/2"H x 3-3/4"W x 1-1/8"D 4.3 oz. $12.99