Introducing the Hydro Flask Standard Flex Straw Cap - your go-to hydration solution for effortless sipping on the move! Crafted with a combination of friendly design and professional engineering, this cap ensures easy, one-handed operation for on-the-go convenience. Experience the magic of TempShield®️ double-wall vacuum insulation, keeping your drinks icy cold for 24 hours or piping hot for 12 hours. BPA and Phthalate-free, its Pro Grade Stainless Steel construction promises durability and corrosion resistance. The sweat-free, powder coat finish guarantees a firm grip, while the leakproof design ensures worry-free transportation.

• TempShield™ Protected for superior insulation
• Keeps cold beverages cold for up to 24 hours
• Keeps hot beverages hot for up to 6 hours
• 18/8 Pro Grade Stainless Steel for ultimate durability
• BPA-Free for a safe drinking experience
• Durable, sweat-free powder coat finish
• Leakproof when closed
• Volume: 621ml