The CamelBak Eddy is the best stainless steel water bottle when it comes time to hit the gym. Its 16oz hydration capacity and double-wall vacuum insulation keeps your water cool no matter how long your workout lasts. Flip, Bite and Sip. No tipping required (though possible: just remove the straw). It’s durable and spill-proof. Easy to carry: the integrated loop handle makes it easy to clip or carry around the gym. The Eddy is your perfect workout buddy.