This is “Santa’s Cup Cozy”. :)

My patterns contain a written shorthand pattern with common crochet abbreviations and an unabbreviated version of the same pattern with lot of pictures

Skill level - Easy/Beginner. This pattern takes increasing, decreasing, single crochet, and slip stitching to join. If you can do that, you should be fine! :) You will also have to sew the buckle onto the cozy.

This pattern has been tested and checked for errors.