REUZBL Bottle Boots are designed to fit the following sized vaccum-sealed insulated stainless steel water bottles: Fits 32 oz and 40 ozBottles:<br>32 oz Wide Mouth bottle<br>40 oz Wide Mouth bottle<P>Fits 12 to 24 oz Bottles:<br>12 oz Standard Mouth bottle<br>12oz Wide Mouth bottle<br>16 oz Wide Mouth bottle<br>18 oz Standard Mouth bottle<br>18 oz Wide Mouth bottle<br>20 oz Wide Mouth bottle<br>21 oz Standard Mouth bottle<br>24 oz Standard Mouth bottle<P>Packaging:<br>Each boot comes packaged in a soft, cotton bag that can be used and repurposed!