Bike rides along the beach or snowshoeing in the backcountry - it's easy to stay hydrated on the go with Hydro Flask's 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 to keep drinks cold up to 24 hours or hot up to 12 - no matter what the weather’s doing outside.
- Compatible with all Standard Mouth bottles
- Insulated for enhanced temperature protection
- Quiet, "no whistle" valve
- BPA-Free and Phthalate-Free
- Sport Cap is not intended for use with hot liquids and is not leakproof