The Hydro Flask Standard Mouth Flex Cap is a durable and leak-proof cap designed to fit all Hydro Flask Standard Mouth bottles. It features Honeycomb Insulation™ to help keep your drinks cold for up to 24 hours or hot for up to 12 hours. The cap includes a flexible strap for easy carrying and is made of durable polypropylene (PP#5), ensuring long-lasting use. It is BPA-free and phthalate-free, promoting safe hydration. The vented design allows hot vapors to escape, enhancing safety during use. The cap is dishwasher safe for easy cleaning and is not intended for carbonated drinks or hot liquids.
