Hydro Flask Wide Mouth Flex Cap
Insulated, flexible, and built to last.
Whether your outdoor adventures include bike riding by the beach or snowshoeing in the backcountry, our Wide Mouth Flex Cap makes it easy to stay hydrated on the go. Designed with stainless steel pivots and a flexible, twistable strap, this cap moves when you do. Plus, it’s made with Honeycomb Insulation™ to keep cold drinks cold up to 24 hours and hot drinks hot up to 12 — no matter what the weather’s doing outside.
- Compatible with all Wide Mouth bottles
- Honeycomb Insulation™ helps keep cold drinks cold and hot drinks hot
- Durable, stainless steel pivots allow the strap to move easily
- BPA-Free and Phthalate-Free
- Lifetime Warranty