Review on Anti-Slip Silicone Bottle Sleeve Cover For Hydro Flask & More - Vmini Protective Boot, Fits 12-40 Oz Bottles by Eric Surabhi

I purchased to go with a 40 oz stanley and it fit, but not without struggle. I definitely cannot do it one handed. I had to turn it upside down and use both hands. It took some tugging to get on there all the way and I'm not 100% it is. I'm not able to get a tight seal/suction on the very bottom (maybe because of the air hole?).The gray color compliments my cup perfectly and that's why I'll more than likely keep it. It does seem thinner than other brands I purchased at the same time. Not bad over all, it's definitely not coming off the cup.