This includes two separate patterns - one for typical 20-24oz tumblers with a gradual conical shape, and another for 28oz+ tumblers with that additional ridge-like shape a couple inches from the bottom. Great description - I know. :)

These beginner level patterns were designed using #5 Bulky yarn, with a size K crochet hook. You can also use smaller yarn & double up, using 2 or more strands in order to make it equivalent to bulky!