The flexible strap makes it easy to carry, and the insulated cap guarantees leakproof, on-the-go convenience. Stay refreshed effortlessly with this BPA-free, top-rack dishwasher-safe cap designed for all Hydro Flask Standard Mouth bottles.

·     Standard Mouth Flex Straw Cap fits all Hydro Flask Standard Mouth Bottles

·     Straw is easy to trim to fit your favourite Hydro Flask

·     Flex Strap is easy to transport and comfortable to carry

·     Honeycomb™ Insulated cap for maximum temperature retention

·     Leakproof when closed so you can reliably sip and transport your refreshment without worry

·     BPA-Free & Toxin-Free

·     Removable components for easy cleaning

·     Compatible with Small Flex Strap Packs

·     Dishwasher safe

·     Not intended for use with carbonated beverages

·     Flex Straw Cap not intended for use with hot liquids

·     Keep hot liquids out of the reach of children

·     Capacity: 21oz (621ml)