GSI Boulder 10 Flask

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The GSI Boulder 10 is a durable hip flask designed for backcountry adventures. It combines a shatter-resistant copolyester body with a protective silicone bumper to withstand rough treatment in harsh environments. Built-in graduations let you measure portions precisely, while the hinged silicone cap stays tethered so it won't get lost on the trail. The low profile design fits easily into clothing and bacpack pockets. Features Shatter-resistant, BPA free copolyester resin body and grippy, silicone bumper mean this flask can go anywhere. Wide mouth makes for easy filling, pouring and drinking. Hinged top with silicone grip is easy to open and impossible to misplace. Convenient moulded graduation marks. Specifications Boulder 10 Boulder 16 Volume 295ml 470ml Weight 119g 186g Dimensions 9.4 x 2.8 x 16.5 cm 10.9 x 3.3 x 19.8 cm Show more