Hydro Flask Wide Mouth Flex Cap
Best replacement lid for active Wide Mouth bottle users.
This is the gold standard for replacing a lost or worn-out lid, offering a leak-proof seal that actually keeps your drink at the right temperature. While the flexible strap might feel slightly bulky in a crowded bag, the trade-off is a rugged, reliable handle that makes carrying your bottle effortless.
$9.95
at
Backcountry
Who it's for
- Commuters and hikers needing an easy-to-carry bottle handle
- Drinkers prioritizing maximum temperature retention for hot or cold beverages
- Hydro Flask owners wanting a guaranteed leak-proof, perfect fit
Who should skip it
- Budget-conscious shoppers preferring affordable third-party alternatives
- Drivers or athletes needing one-handed, quick-access hydration
- Users wanting a low-maintenance lid that is easy to sanitize
Performance breakdown
Temperature Retention
Honeycomb insulation effectively prevents thermal transfer through the cap.
Leak-Proof Reliability
Twist-tight seal provides total confidence when tossing into a bag.
Carry Comfort
Flexible TPU strap makes carrying heavy, full bottles surprisingly comfortable.
Build Durability
Stainless steel pivots and rugged plastic withstand years of daily abuse.
Cleaning Ease
Dishwasher-safe design simplifies maintenance and prevents stubborn grime buildup.
Compatibility
Seamlessly fits the entire Hydro Flask Wide Mouth product ecosystem.
Key Specs
Material
Stainless Steel and Plastic
Cap Type
Wide-Mouth Flex Cap
Compatibility
Hydro Flask Wide Mouth bottles
Strap Material
Thermoplastic urethane (TPU)
Cap Construction Material
Recyclable polypropylene #5
Height
70.1 mm
Diameter
81.28 mm
Weight
2.5 ounces
Know before you buy
Still have a question?
Ask Metto anything about the Hydro Flask Wide Mouth Flex Cap before you decide.
