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GSI Outdoors 79346 Boulder Flask 10 Oz Graphite

4.7 (6) Write Review
Free shipping on orders over $29.99

$22.95

$ 10 .99 $10.99

In Stock

1.Color:Orange


About this item

  • Boulder Flask 10 Oz Graphite
  • We believe food brings us together, sustains our explorations, and, mysteriously, always tastes better when cooked and eaten outside
  • We’re committed to responsible manufacturing, stewardship of our environment, and design rooted in innovation, efficiency, and durability


Product Description

Celebrate your outdoor adventures with the GSI Outdoors Boulder Flask! Its copolyester resin construction is crafted to withstand any bumps, drops and dings along the way. The wide mouth design makes it easy for both filling up or pouring directly into a cup–plus an attached hinged silicone cap ensures a good grip even in cold temperatures. This BPA-free flask also features graduation marks molded on its surface, so you can easily check how much beverage remains inside without having to guess. Whatever your “poison,” you’ll enjoy on-the-trail sippin’ without any foul taste from the flask material. Don’t leave camp without this handy companion by your side!

Boulder Flask. Easy-fill and shatter-resistant flask for any adventure.
Ultra-light, rugged construction, protective bumper, silicon-lined cap
Customer Reviews
4.6 out of 5 stars 395
5.0 out of 5 stars 7
4.4 out of 5 stars 253
Price $19.95 — $33.68
Size 10 ounces (about 300 ml) 720 ml (about 24.3 ounces) 720 ml (about 24.3 ounces)
Type of Lid Hinged Silicone Cap Flip-Top Twist-Top
Colors Graphite and Orange Mountain View, True Black, Stainless, True White Mountain View, Orangeade, True Black, Brushed
Material Copolyester, Silicone Stainless Steel Stainless Steel, Polypropylene, Silicone Copolyester

Carlos Diaz Flores
2025-08-21 13:54:32
Todo
Jamie T
2025-06-03 12:02:51
More plastic than I thought - and bigger than I thought - but both probably on me. Will let me be an alcoholic whilst travelling with ease
DonaldB
2025-04-28 10:59:15
Amazing for camping!! Solid and doesnt absorb the taste/smell of what i put in it so i can reuse with different products.
Collette
2025-03-14 15:51:07
I bought this for my trip to Italy and wanted something small enough to put in my purse. This was the perfect size. It doesn’t hold a lot of water but it’s enough to get you buy until you can refill.
Jedi
2025-02-22 21:19:43
Very useful at festivals especially when taking in “water”
TLM
2024-11-16 12:45:48
Much bigger than expected, but for carrying whisky over multiple days I think it'll work well.