Hydration on the go just got easier with Hydro Flask's Wide Mouth Flex Straw Cap--a leakproof, insulated Flex Straw Cap. Add it to your favorite Wide Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere.
• Dishwasher safe
• Not intended for use with hot liquids
• Leakproof when closed
• Straw is easy to trim to fit your favorite Hydro Flask
• Flex Strap is easy to transport and comfortable to carry
• Insulated for maximum temperature retention
• Removable components for easy cleaning