Review on 🧴 Water Bottle Silicone Boot Sleeve Cover - 5-Piece Set, Anti-Slip Bottom, compatible with Hydro Flask, Simple Modern, Takeya, MIRA, Iron Flask Water Bottles by Brian Olson

They are cheaper than many similar (perhaps exactly the same) products on Revain and elsewhere. I suspected they might be of poor quality but they are not. I didn't buy them for their intended use so I can't comment on how well they fit a specific bottle but I can say the sizes advertised are pretty close and the material is stretchy enough to fit over the end draw. 3.75 inch diameter glass tube. The thickness of the silicone is the same throughout the product. There are no significant thick or thin patches. The colors are bright and uniform.