The Hydro Flask Standard Flex Straw Cap offers effortless sipping and is designed for easy transport on the go. This cap is compatible with all Standard Mouth bottles, ensuring your beverages remain refreshingly cold wherever you are.

About the Product

• Compatible with all Standard Mouth bottles
• Adjustable straw trims to match bottle depth
• Features a comfortable flex strap for easy carrying
• Includes advanced insulation technology
• Reliable leakproof design prevents spills