The Owala 32 oz. FreeSip Vacuum Insulated Stainless Steel Water Bottle lets you choose your own adventure. Hold upright to sip through the built-in straw, or tilt back to swig through the wide mouth opening. If that isn't exciting enough, this bottle is ready to spring into action at any time. Just push the button to flip the top open and push back down to lock it shut for leakproof peace of mind.