AIERSA3Pcs Silicone Boot Sleeve for Stanley Quencher 40oz 30oz Tumbler with Handle,for IceFlow 20oz 30oz,Protective Water Bottle Bottom Bumper Cover for Stanley Cup Accessories,Cream,Green,Brick-red

These are a must have if you these cups. I don't have to worry about the cup scratching the surface of whatever I'm putting it down on. Added bonus, they are cute.

Fits well on Yeti and other (generic) brands I own. Loose fit hydro flask since their base is a bit thinnerPeace of mind when putting on desk, don’t have to take extra second to pause before putting it down on table or flat surface knowing the boot won’t damage the table or tumblerFor the Yeti brand (and other similar brands) will cover the metal accents on bottom of tumbler that makes it uniqueProtruding pattern on boot. Not smooth throughout. Doesn’t provide better grip or cause any friction when putting tumbler out of tight cup holder. Mainly just their for aesthetic reasons

These work on my era brumaster and our yeti’s. We use one every day.

What I like most about these boots is that they are not smooth on the sides and gives a better look.These really help with avoid the loud metal clink when putting down my Stanley 40 oz tumblers. Also helps keeping your tumbler free from nicks and dings. These fit snugly on the bottom of the tumbler and won't fall off.Products like these are must haves for tumblers. This particular one is a great choice.