IRON °FLASK Protective Silicone Boot for 64 Oz Narrow Mouth for Sports Water Bottles Accessories

Works perfect. Very easy to clean. A little tight to get on at first, stays on great. Recommend getting for protection of bottle and surfaces.

I have a 40oz yeti and this fit perfectly! I highly recommend it.

Tight but fits.

Didn't think it was the right size at first, but it fit just fine and I've had no issues of it moving. Helps keep the bottle from making such a loud "bang" when setting it down. Also no longer slides if setting on an angled surface. I'll probably get one for my 40oz as well

I bought black 64 ounces(it says narrow 64oz)and it fit yeti 64 oz bottle not perfectly but nicely fits, I’m happy with it. I wish they had white in stock.

Takes away the big clang when you go to put your bottle down. Boot stays on with no problem but also comes off easily if you need to clean it (haven't had it fall off on its own).

Amazon Sent me the WRONG one. This highly upsets me because I’ve purchased this silicone boot but in Pink for my own iron flask. My boyfriend has the same EXACT Iron Flask but in white. So I bought him the black silicone boot, but It doesn’t fit his 64.oz official iron flask like it says it does!!! I compared the two, pink on the bottom says “64 oz. wide” meanwhile the Black says “Narrow 64 oz”. PLUS, when you’re ordering, it does NOT give you the option to choose wide or narrow. I still need a silicone cover, but now as someone who travels on foot and by bus, I’m terrified of having to make another 2-hour trip just for a return when Amazon is to blame. If it helps, I provided photos of both silicone boots to compare and separate photos with the difference. Couldn’t fit the black boot cover! Just simply wanted something so my boyfriend‘s flask could stop getting dented at the bottom, but that’s too much to ask. :(

BUT did you know there’s a hole in the middle? Idk why I thought it was a completely covered bottom, I guess because picture doesn’t show it so I uploaded one so you can see.