Custom-Fit Hats: Complete Guide for Math Lovers & Haters

A fun and different way to knit hats: from the top down. This is not a standard pattern book—it’s a complete recipe for making your own custom-fit hats, for any head, with any yarn.

Just grab a skein and start knitting! The recipe includes all the instructions and numbers for knitting three styles of hat with three choices of brim style, in 13 gauges and 17 sizes, covering preemies to XL adult heads. And if those don’t cover your needs, the formulas are included so you can calculate your own.

Photo tutorials and guidance on fit and yarn help you make your first hat perfect. For experienced hat knitters, the advice on customisation and straightforward but powerful formulas empowers you to get designing.

The book steps you through the whole process: from choosing yarn and determining size right through to finishing, with tutorials for all the key knitting techniques – casting on, working in the round, stretchy and decorative bind-offs, even weaving in the ends. There’s a whole chapter with ideas and instruc