GSI OUTDOORS 10 OZ BOULDER FLASK
Rugged, compact, and built for adventure, the GSI Outdoors 10 oz Boulder Flask lets you take your favorite drink along on your outdoor outings, camping trips, hikes, or around the campfire.
Its shatter-resistant copolyester body is protected by a non-slip silicone bumper that improves grip and helps protect the flask against drops and impacts.
With its slim shape and light weight, it slips easily into a backpack, pocket, or your camping gear.
Rugged and practical in the field
The Boulder Flask features a wide mouth that makes it easy to fill, pour, and clean. Its hinged cap with a silicone grip stays attached to the flask, preventing you from losing it while on the move.
Graduations molded directly into the container also make it easy to measure the amount of liquid.
Features
- Capacity: 10 fl. oz. / approx. 295 ml
- Shatter-resistant copolyester body
- Protective silicone bumper
- Easy-grip surface
- Wide mouth for easy filling and pouring
- Hinged cap that stays attached to the flask
- Molded graduations to measure contents
- BPA-free
- Compact and lightweight
- Weight: approx. 4.1 oz. / 116 g
- Dimensions: approx. 9.4 × 2.8 × 16.5 cm
- Materials: copolyester and silicone
Care
Hand wash with warm, soapy water and dry thoroughly after use. Avoid abrasive cleaners.
The 10 oz Boulder Flask is an excellent option for those looking for a lightweight flask that is much more durable than a traditional rigid model, perfectly suited for camping, the outdoors, and travel.
Brand: GSI Outdoors

Quality Commitment
All our products are carefully selected to provide reliable equipment suitable for your outdoor excursions.
Need advice or a technical opinion? Our team is available in-store to help you choose the right equipment.
We can also assist with special orders, including those for organizations, work teams, or military needs.
