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Toast your effort at the end of the day with the GSI Outdoors Boulder flask. It's built tough to handle the bumps and bruises of life on the trail and designed with an attached cap you can't lose.
Save on Boulder Flask - 10 fl. oz. with a REI discount code
Checkmate is a savings app with over one million users that have saved $$$ on brands like REI.
The Checkmate extension automatically applies REI discount codes, REI coupons and more to give you discounts on products like Boulder Flask - 10 fl. oz..
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