HYDRO FLASK Hydro Flask Standard Mouth
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Strong yet flexible, the Standard Mouth Flex Cap is the perfect companion for spontaneous campouts, epic road trips, and everything in between. Made with stainless steel pivots and an easy-to-carry strap, this cap has Honeycomb Insulation™ to help keep your cold drinks cold for up to 24 hours and hot drinks hot for up to 12. Pair it with any of our Standard Mouth Bottles for a durable way to take your favorite drinks on the go.
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