Puffed up sleeve

Book/device sleeve is made to measure so costumizable to fit any size. Work with measurements so no gauge necessary! Better results with cotton yarn but you can use anything really. You can use 1,2,3 or more colours for this or even variegated yarn! Work in the round to form a square then join to form a sleeve and attach a closure! Easy ! Thank you to my tester team in helping me out with pattern. (They are mentioned inside pattern file along with their names and ig profile)