The Mass Wide Mouth Straw Lid Compatibility Most Sports Water Bottle

Works as good as the hydro flask strawtop. I’m using it on my Costco brand bottle and have no complaints.

I ordered these to go with my flamingo pink 40 oz Hydro Flask, because I wanted something that matched it, but I also wanted the convenience of a straw lid, and I had to have something that wouldn’t leak. I read through some of the reviews, and there were a lot of claims that these are leakproof. So far, I’ve only tried out one of the straw lids, but it’s absolutely leakproof. I filled my Hydro Flask with water and ice yesterday, put on one of these straw lids, held it upside down, shook it, set it on its side on my lap, and waited for it to leak. It never did. I should have tested out the second one, but I’ll get to that tomorrow. The other thing I wanted to find out was if the plastic holds the scent/taste of whatever beverage was in it. Today I filled my Hydro Flask with iced passion tea, and tomorrow I plan to use the second lid and fill my flask with iced chai tea. I’ll wash both tops again, then try them both out with ice water to see if there’s any residual taste of iced passion tea, or chai. I’m not really concerned about how these types of straw lids aren’t great for carbonated beverages, as I don’t think I’ll put sparkling water in my flask very often, but the fountain effect that can occur with this style of lid and carbonated beverages is something to be aware of. There is another brand of straw lid available if you’re a big drinker of carbonated beverages.One thing I’m not thrilled with is that these lids have some tight corners that could make for difficult cleaning, but that’s not the fault of the manufacturer. It’s just a problem with this style of lid. The price we pay for a straw lid, I guess?Anyhow, I cannot believe how great these off brand straw lids are, especially after reading about how problematic the Hydro Flask name brand ones can be. The price also can’t be beat. I really wish this company also made the spout/chug lids in all of these same color assortments. I’d absolutely buy hot pink spout/chug lids for my Hydro Flask!Oh! I almost forgot! I read through a ridiculous amount of reviews for different brands of straw lids, and one of the most common complaints I saw, after the lids not being leakproof, was that the straw was really difficult to suck through. I guess this is due to the vacuum effect. I haven’t had that problem at all with this lid. It’s easy to suck and keep on sucking through this straw lid. Sucks in a good way!Like I said, I plan to test the other lid for leaks tomorrow, as well as see if this plastic retains flavors/odors. I’ll update my review with how that goes.

I read some of the other reviews before placing my order. Was on the fence but since getting them and using for a week I love them. No leaks and works great. Have had on my Harley that I ride every day at my department and if you no a Harley they shake, rattle and everything else. I have mine on a Hydro Flask. Love it. Can reach around flip open and take a nice long pull...and they don't feel cheap. No problems here with leaking. I can say if you are taking a drink a blow into it like a balloon water will come out the rubber siphon hole...duh.

I broke my original lid. This design is a tight fit on my thermal flask, no concerns of leaking water through lid or spout. Even while rolling around in the copilot seat. They don’t fit my cup holders!The thermal loss is minimal, if considering that this cap uses a straw that stands in the fluid of the container. These flasks are utilizing a vacuum insulation in the flask. So the majority of the temperature exchange will be through the lid in any instances.I love this option. The straw just makes it to easy to enjoy the cool fluids. Leaving me to fill the container more often.Lucky Hydrator😃

The threads on these are not designed right. They are difficult to put on and take off. They are very cheaply made. They are extremely slick. You will have to add traction tape or something to grip it well. Overall I would rather have the original manufacturer top.....I have it on another and it is worth the difference in price.

Our family purchased a slew of Hydroflasks almost a decade ago when they first came out due to their durability and our busy outdoor lifestyle. Our first set of Hydroflask lids were similar to the ones you find on Nalgene bottles, however they kept breaking to the point where we had no lids left and I needed to contact Hydroflask and complain. Thankfully, they sent us new lids, the flip top kind ~ but those also broke easily. So we've been in search of new lids for our 14 Hydroflasks! We like to make smoothies and juice so we thought we would try these straw lids. I also opted to purchase the band name Hydroflask lid when it was on sale at a large outdoor equipment retailer. These lids are almost identical to the Hydroflask one. The only real difference is that these don't have the brand name on them AND they came WITH cleaning brushes ~ which was awesome. So, while these are more than I would like to pay for a bottle lid, they are of very high quality compared to the brand name version. I like that we can get these in multiple colors too and it comes with 2 straws that you can cut to size ~ great considering we have Hydroflasks that are shorter (12 ox I think?) that they don't sell anymore. We will be buying a few more in different colors for the rest of our collection!

These kids seem like durable units but I had to bear force them onto my 45 degree Latitude 64 oz bottle then it leaked when tipped on an angle or on its side.I’m sure these are great for bottles that specifically fit them but for my 45 Degree Latitude 64 oz hydro flask bottle they don’t fit at all. Though This would have more to do with the threading not matching up to my bottle so the threads are creating a gap that isn’t sealing well is my guess.A+ for design and quality but fails for my needs since I went by their description recommendation.

They fit great and do not leak but I dropped one and it snapped in two pieces

This lid is perfect! I have the 40oz thermoflask from Costco and this lid fits perfectly! I haven’t noticed any leaking and the new lid hasn’t affected the insulation at all! Keeps my drinks super cold!

Loved the color - bought for my daughter who loves it!