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Boulder Flask

lightweight, ruggedized hip flask

Boulder Flask

Boulder Flask

lightweight, ruggedized hip flask

Item# 79356

Item# 79357

Price $14.95

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Price: $14.95
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 making it impossible to misplace.

Features & Specs

Co-Polyester construction is lightweight and eco-friendly

Shatter-resistant body and grippy, silicone bumper mean this flask goes anywhere

Wide mouth makes for easy filling, pouring and drinking

Hinged top with silicone grip is easy to open and impossible to misplace

Product Specifications

Major Dimension: 10 fl. oz.

Weight: 4.3 oz

Dimensions: 3.7" x 1.1'' x 6.5''

Material: Copolyester, Silicone

Product Use: Ultralight Backpacking

10 fl. oz. Flask, Silicone Bumper, Hinged Cap

Features and Specs

Customer Reviews

How do you rate this product?

By The Hammer 11:53 AM 02/20/18

Best travel companion ever.

By The Hammer 11:53 AM 02/20/18

Best travel companion ever.

Support & Warranty


WARNING: Flask designed for travel/outdoors use. Long term storage of liquids may effect flavor.


All GSI Outdoors products purchased in North America are fully warrantied to the original owner against manufacturer's defects in materials and workmanship.

Normal wear and tear, which includes, but is not limited to, scuffs, dust, dirt, abrasion, etc., is not a valid reason for a warranty return. Repairs due to accident, improper care, or negligence will be performed at a reasonable charge.