Hydro Flask Standard Flex Cap

The Hydro Flask Standard Mouth Flex Cap ensures your liquids don't spill, your drink stays the right temperature, and that you can carry the bottle with ease. This lid is compatible with all Hydro Flask Standard Mouth bottles.

• Honeycomb insulation helps keep drinks cold and hot
• Easy-to-carry strap adds convenience
• Compatible with Standard Mouth bottles
• Spring/summer 2021 item