Hydro Flask

Insulated, flexible, and built to last.Bike rides along the beach or snowshoeing in the backcountry — it's easy to stay hydrated on the go with our Wide Mouth Flex Cap. Designed with stainless steel pivots and a flexible strap, this cap moves when you do. Plus, it’s made with Honeycomb Insulation™ t..

Coffee on-the-go.Whether your first sip is in the kitchen, car, or campsite, the Flex Sip™ lets you enjoy your favorite brew leak-free.Product BenefitsTwist opening for easy on-the-go sippingBPA-FreeCompatible with all Wide Mouth bottlesLifetime Warranty..