Wide Mouth Flex Straw Cap

For athletes who want to drink without breaking stride, the Flex Straw Cap turns any Wide Mouth Hydro Flask into a sip-on-the-move bottle. The flexible straw folds flat for storage and pops up instantly, while the leak-resistant seal keeps your pack dry when the bottle rides on its side.

• Fits all Hydro Flask Wide Mouth bottles — instant upgrade to gear you already own
• Flexible straw folds down flush for pack storage, pops up for quick sips without unscrewing the lid
• Leak-resistant seal holds tight when the bottle is horizontal — no soaked gear, no wasted water
• Built for runs, hikes, and hunts where stopping to fiddle with a lid isn't an option
• Available in Black — low-profile finish that pairs cleanly with any Wide Mouth color