30 oz Replacement Lid for Stanley Quencher Tumbler Flip Straw, 2 PCS Spill Proof Lid Accessories Fit for Stanley with handle, Leak-Proof Splash Resistant Replaceble Cover Cap forStanley,(Lvory*2)

They don’t leak and they fit to 20 oz cup 👌🏻

This lid works great. If the straw is closed, it will not leak. Exactly what I was looking for.

Fits the 30 ounce Stanley perfectly and does not leak at all! Definite improvement on the lid that comes with the Stanley. Great purchase!

I was hesitant to buy non brand name items for our Stanley’s but I was pleasantly suprised with the fit, feel and quality of the product! We even purchased some to give as gifts! Great value for product. We have not experienced any leaks and it fits the Stanley perfectly

In my original review of this product I awarded it a single star. The lid fit loosely on my tumbler, and popped off too easily. Maybe it was meant for a different brand of tumbler or something. However, I feel the need to change my review because I was quickly contacted by the sellers asking what they could do to solve the issue. Basically, they offered to refund me if they couldn’t resolve the problem. They asked for some extra details regarding the fit and on what tumbler own. I sent them a small video showing the lid easily pop off my tumbler. After a just a few more clarifying questions, such as what my tumbler’s originally lid looked like, I received two new lids just a few days later. These ones fit absolutely perfectly.For whatever the reason the original lids I purchased didn’t fit, I feel the need to change my review based on my overall experience. This is the first and only time a seller through Amazon has offered to fix any problems I had with their product and see to it they left their customer happy. These guys went over and beyond. They could have easily just refunded me, but then I still would have been left with the problem having a cup with no lid and the chore of scouring the internet for a lid that would fit. Instead, they chose the gather as much information they could about the problem, and found the perfect solution. They were prompt with their responses, the speed of their delivery was amazing. This originally product may not have been the exact item I was looking for, but 5 stars for the help in finding that perfect item.

Twists on perfectly, and is spill resistant! Water retention:I am not scared for the cup to roll around because the lid is sealed and secured!

If you own a Stanley Quencher and want to stop worrying about spills, then this lid is for you. I was excited to find it because I bought another very expensive brand tumbler specifically because it didn’t leak. I like my Stanley better. I tested the flip straw lid by turning the tumbler when full, with the straw part closed, upside down, and it didn’t leak at all. I shook it vigorously upside down and still no leaking. I then tested it getting knocked over on the floor and it didn’t leak then either. Another plus was the color of the lid matched my Stanley perfectly. Also, two lids were included making this purchase very economical. I have given the link to everyone in my family because they want one too, the only con I see is I haven’t figured out how to clean all parts of the lid to prevent mold. My other very expensive tumbler was really easy to take apart and clean. It was inexpensive enough that if I can’t keep it clean enough, I will just buy it again.

These lids work well, as far as no leaking. They fit my 30oz Stanley just fine, but they are not insulated…so your ice melts way faster than when you have the regular lid on the cup. As long as I am at home to refill the ice, it’s fine. But when I am gone for the whole day the water doesn’t stay cold due to ice melting quickly.