5 Pieces Protective Silicone Boot Anti-Slip Bottom Sleeve Cover for Water Bottle Compatible with Hydro Flask, MIRA, Simple Modern and Iron Flask Water Bottles

Bought these for 36oz Yeti Ramblers and it's a perfect fit! Does not slide, slip or fall off...nice snug, tight fit!

They fit well on the bottom of the water bottle. Snug, but not hard to get on or off. They protect the surfaces your water bottle sit on. The one draw back would be it makes the bottom to big to fit in my car's cup holder.

These fit our older 24 oz Thermoflask from Costco and older REI 20 oz insulated bottle. Putting them on isn't as easy as Hydro Flask boot since these do not have a small hole on the bottom to allow the air to escape, but they're fine & much cheaper. Durable in 2 years of use. The lack of an air hole is the only reason I give them 4 stars.

Fits the Stanley cups perfectly

Both of my metal water bottles had dents on the bottom and weren’t terribly stable. I decided to try these first instead of replacing the bottles. I was pleasantly surprised. They are just a bit loose on my bottles, but not so loose that they fall off. The colors add some personality too! I’m very happy with this purchase.

These are less expensive than a lot of the similar (probably exactly the same) products on Amazon and elsewhere. I suspected that they might be an inferior quality but they are not. I did not buy these for the intended use so I can't say how well they will fit on any particular bottle but I can say that the dimensions listed in the ad are pretty close and the material is stretchy enough to pull them onto the end of a 3.75" glass tube. The thickness of the silicone is uniform throughout the product. There are no significantly thick or thin spots. The colors are bright and consistent.

Spent a big sum on new family stainless steel water containers and had read reviews that these bottom covers were recommended by some to prevent dents when dropped and bangs when set on counters… we’ve used these A LOT and dropped several times … not sure if they’ve helped for sure, but I can say I hear no bangs on counters and no dents yet to be present!

I love the variety of colors and patterns. There are a lot of people that use Owala bottles in my family and they would keep us from mixing them up, if they actually fit. I bought the 32 oz silicon covers and they are way too big for our Owala water bottles. They just fell off. I was really disappointed. I'm sure they will fit other 32oz bottles, just not the ones we use.

Purchased the smaller ones and they fit the smaller thermoflask bottles you get at Costco. The silicone is thicker than the thermoflask ones as well, so I think it offers a bit better protection.