Built for anyone with a bucket list or PR to check off! Your Hydro Flask 40 ounce Wide Mouth Bottle with Flex Straw Cap is a hydration game-changer. Flip, sip, repeat, no spills, no fuss. Thanks to TempShield® insulation, your drink stays ice-cold for 24 hours, no matter how hot your workout gets. Plus, the Flex Straw Cap makes one-handed hydration a cinch. Ice cubes? No problem. Dishwasher safe? Heck yes.