The Hydro Flask Standard Mouth Flex Cap moves with you, for ultimate comfort and functionality! The flexible carry strap makes it super easy to carry with you on any outing or adventure.
- Compatible with all Standard Mouth Hydro Flask bottles
- Honeycomb Insulationā¢ helps keep cold drinks cold and hot drinks hot
- Durable, stainless steel pivots allow the strap to move easily
- Flexible easy-carry strap
- BPA-free and phthalate-free