Pick and Mix Hat is part of the Pick and Mix ebook: a collection of patterns to make your own.

Using this book, you can create your own completely unique design
by pairing your choice of sweater, cardigan or hat with your choice
of four colourwork patterns and your choice of four main stitch
patterns. They all work beautifully together without the need for
any extra maths. We’ve even included the maths and pattern writing assumptions so you can have a go at designing your own stitch patterns if you’d like to.
Each stitch pattern is written and charted, and we have included lots of advice throughout the book to help you create the perfect item even if it is your first garment. Although the colourwork looks complicated, each pattern uses only one colour at a time (no stranding) and we’ve added some tips on how to avoid getting into a tangle. There’s also the chance to make a patch pocket or a hat to get practice with the colourwork pattern before you dive in.
We want this book to be for everybody and every body. The patterns are suitable for age 2 upwards, are all unisex and offer inclusive sizing and fitting options. We’ve used a common weight of yarn that is widely available at all price points, so whether you live for indie hand dyed or want to pick up your yarn at the discount supermarket, this book will work well for you.

Size
S (M, L)
To fit head circumference up to 50(55, 60)cm/20(22, 24)in
Finished circumference at brim: 47(51, 55)cm/18.5(20, 21.5)in
Finished Height (adjustable): 19(21,24)cm/7.5(8.5, 9.5)in
Head sizes vary widely by age, the small size should fit a child but, if lengthened may also fit an adult. If you can measure the recipient you will get the best fit. Hats need to have a negative ease at the brim so they stretch to fit, otherwise they fall down over your eyes. Choose a size up to 5cm/2in smaller than your actual measurement.

Materials
1(1,2) 50g skeins of Coop Knits Socks Yeah DK (DK, 75%
superwash merino wool, 25% Nylon, 112m/122yd/50g) in MC
1 50g skein of Coop Knits Socks Yeah DK (DK, 75% superwash
merino wool, 25% Nylon, 112m/122yd/50g) in each CC
3.5mm (US E/4)hook
4.5mm (US 7) hook
Yarn requirements are a guide and given for the basic pattern
as written, pattern adjustments, slight differences in stitch patterns
or tension differences may alter the amount of yarn required.

Tension
Rib row tension is more critical to the success of this project than the pattern tension.
28 sts and 13 rows in rib made of htr in BLO to 10cm/4in using 3.5mm hook. (Or size needed to obtain tension.)

Difficulty Rating
Easy

Skills Needed
Basic crochet stitches, working in rows, working into sts from
previous rows, working in the round, missing stitches, increasing,
decreasing.

Construction
Worked in the round from the crown down, ribbing at brim is
worked in rows perpendicular to the body of the hat.