Pint cozy’s bottom is a little more rounded than I’d like. I would do all or mostly decrease rounds next time and skip the even rounds in between.

For quart jar, using size 5 needle
CO 60 a la hmarchhare
K3P2 rib for 7 rows
Knit stockinette until work measures 6” from CO
Forgot to do a purl round. I kind of like it without one.
Decreased 4 st per round