HydroFlask Standard Mouth Flex Cap
Strong yet flexible, 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 drinks cold for up to 24 hours or hot up to 12. Pair it with any Hydroflask Standard Mouth bottle.
- Honeycomb insulation helps keep cold drinks cold & hot drinks hot.
- Compatible with all Standard Mouth bottles.
- Durable stainless steel pivots.
- BPA and phthalate free.