KMN Straw Lid for Hydro Flask Wide Mouth
A cheaper straw lid for wide-mouth Hydro Flasks, less proven
A third-party flip-top straw lid with a soft mouthpiece and carry handle for Hydro Flask Wide Mouth 32 and 40 oz bottles. BPA-free; straw cleaner included.
Our take
Aftermarket lids look like an easy saving. The risk is fit, and fit is the whole point of a lid that rides in your bag. This third-party lid adds a flip-top straw with a soft mouthpiece and a carry handle to 32 and 40 oz wide-mouth Hydro Flasks, for less than the brand's own lid. A straw cleaner comes with it.
On a drive or at your desk, a small leak doesn't matter much. In a backpack next to your laptop, it does. It has few reviews so far, so fit and leak resistance are less proven, and the straw may need trimming to sit right. It won't fit standard or narrow mouth bottles.
Use it in the car and it's fine. For a lid you'll toss in a bag, pay for one with a longer track record.
Who it’s for
Owners of 32 or 40 oz wide-mouth Hydro Flasks who want a cheaper straw lid for the car or the desk.
Skip it if
Skip it if your bottle rides inside a bag where a leak matters. A lid with a longer track record is the safer choice.
KMN Straw Lid for Hydro Flask Wide Mouth: questions people ask
Do third-party lids fit Hydro Flask bottles?
Many do, but fit varies. This one is made for Hydro Flask Wide Mouth 32 and 40 oz bottles only.
Why does my straw lid leak?
Usually it's a straw that's too long, a seal ring sitting unevenly, or a lid that isn't fully tightened. Check the seal and trim the straw if you need to.
Are straw lids hard to clean?
They have more parts than a plain cap. A straw brush and hot soapy water at the end of each day keeps them clean.
Where we recommend it
More in Water Bottles & Hydration
Hydro Flask 24 oz Wide Mouth Bottle with Flex Straw Cap
The right size for road trips and city days, but the straw lid is more work to clean in a hotel sink than a screw cap.
Nalgene 32 oz Wide Mouth Bottle
A tough, light quart for hikes and road trips that pairs with many water filters, but it isn't insulated and the wide mouth splashes on the move.
Hydro Flask 18 oz Standard Mouth Bottle with Flex Cap
Small enough for a side pocket on city days, but you'll refill a lot in the heat, so hikers should go bigger.
Prices change often — the price on the retailer’s page is the one you pay.