Here is a collection of 12 free patterns of crochet hats that use a worsted weight yarn. A variety of sizes from Newborn to Adult.
30 Free Crochet Hat Patterns Using Worsted Weight Yarn
26+ Hat FREE Crochet Patterns and Crochet Beanie Patterns
Simply Hooked by Janet - Crochet For Every Day
The Easiest Worsted Hat Ever! - Jonna Martinez
30 Free Crochet Hat Patterns Using Worsted Weight Yarn
Simply Hooked by Janet Crochet Patterns
30 Free Crochet Hat Patterns Using Worsted Weight Yarn
12+ Free Crochet Hat Patterns Using Worsted Weight Yarn - Simply
Simply Hooked by Janet Crochet Patterns