4FRNT Stainless Better Bottle (2010)

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These stainless steel bottles are BPA free, and feature the “Big Bite” valve, an attached straw that you bite to drink out of. This is useful when you’re on the move: you don’t have to unscrew any lids or tip the bottle to drink out of it. It’s also spill-proof— toss it right in your bag. At .75 liters, it holds over three of your daily eight glasses of water.