Customer Reviews Hydro Flask Standard Mouth Flex Straw Cap

This cap ought to come with some simple instructions for those of us not very mechanically inclined. After first use, I removed the straw and didn't notice that I was dislodging the rubber gasket. Managed to soak myself on second use because I was foolishly tipping the flask in hopes of extracting water in better than a trickle. On return home I took it all apart and saw what the problem was. A small instruction sheet accompanying the product might be helpful.

Very handy! Sure beats having to unscrew the top every time I want a drink. It is a tiny bit hard to open, but I think that's will resolve with time.

It doesn't leak, which is what we needed.

It's the perfect size for my son's backpack. It's great durable and takes falls pretty well.

I love every Hydro Flask I have bought. I've had them so long, two of my lids with the nipple for the 24 oz standard bottle have broken. Not complaining. I just use the constantly and wore them out.

Love it.

Amazing work perfectly

Love the new stopper. The old model ate up the o rings. Then you have to buy a whole new top. The new design is the bomb. Thanks for fixing that issue

It is so useful and its quality is amazing.

Good quality, does what it should.

Great update for my wife's old water bottle

Works great! No leaking and easy to drink from.

I like it

We are pleased with the new improved accessory for our Hydro Flask. It fit our old bottles and the new carrying handle is comfortable and immensely better than the older style.

It's perfect.

Fits perfectly and I can shake the tumbler to mix in my electrolytes without mess.

I bought this as replacement of the current one that I've been using for a long time. Yes, it's a nice product.

AWESOME!

Fixed problems for my 10 yo with standard cap

A great add to my HydroFlask.

Works as advertised.

Excellent product

Keeps my water cold and refreshing throughout the day!

Makes it easy for the kids to drink water all day

Great to drink water through. Only thing is it's a little long. It's bends inside and has to be pushed down when screwed on. It will be better it a cut it a little. When you're really thirsty, it's easy to drink through.