Owala® FreeSip® 24 ounce Stainless Steel Water Bottle: The Owala FreeSip 24 ounce Stainless Steel Water Bottle is your just-right, toss-in-your-bag-and-go hydration hero. Small enough to fit your car cupholder, but mighty enough to keep drinks cold for 24 hours thanks to triple-layer insulation. Flip the lid, sip through the built-in straw, or swig straight from the top-it's your call. Oh, and did we mention? It's 100% leakproof. So go ahead and toss it. We dare you.