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Though the optimal hooch for hiking is hotly debated among our seasoned testers, the best flask is not: Our staff prizes this personal-size (8-fluid-ounces) container. It’s made of light yet rock-solid stainless steel that we’ve smashed, bashed, and drop-kicked with no significant dents or leaks.
The mouth is easy to sip from (neither too large nor too small) and a leash keeps the lid from getting lost. Smart: The thin shape slides into the most overstuffed winter pack, yet the flask stands on its own without toppling. $20; 4.3 oz.; stanley-pmi.com