WORBSS 2 Pack Glitter Silicone Boot, Compatible with Stanley Tumbler 20 30 40oz & Hydro Flask 18-24oz, Accessories for Simple Modern Tumbler Water Bottles Protector Bottom Sleeve Cover Bumper

Fits perfect and good price. Easy on and off because of the small hole in bottom of them.

Initially I only grabbed because it came in a two pack. The color is white with sparkle which adds pop to any tumbler. I like it because it protects my cup,and the boot slip right off for washing. Great value for the price.

I love the cute subtle glitter appearance of the boot. It definitely keeps the cup from banging on the table. It does make it harder to fit into my car cup holder.

I would say this fits my Stanley 40 oz PERFECT! I was excited to purchase and have one for my 40 oz as well as my 30 oz. While it is marketed to fit a wide range of sizes, these do not fit the 30 oz Stanley bottoms, it will go on and fall off slowly but surely! Still happy i purchased, but definitely something to consider

I like how it fits my Stanley cup perfectly. I’m a happy customer.

Works great on my Stanley!!

I love these so much! I am such a glitter/blingy girl, and they are so cute. Fit my Stanley perfectly, and I have gotten several compliments since I have gotten them. Good quality!

The silicone boot sleeve is an okay product overall. It fits the Stanley Cup well and provides a good grip, which is nice for keeping it from sliding around. The material feels durable, but it’s nothing too special. It does the job of protecting the bottom of the cup, but I wouldn’t say it’s a must-have accessory. If you’re looking for something simple to add a bit of protection, this works fine.

The pale pink isn’t as sparkly as I’d love but I’m not letting that lessen the reviews

These little silicone bases are wonderful! Great for preventing cup from sliding and tipping over on slippery tables/surfaces. Super cute too. Love it!