3.5mm hook for the body and arms.
I change colours in the centre of the back.

Legs and Body
Rnds 1 - 38: Navy blue
Rnds 39 - 44: White
Rnds 45 - 50: Navy blue
Rnds 51 - 56: White
Rnds 57 - 62: Navy blue
Rnds 63 - 68: White
Rnds 69 - 73: Navy blue
….then change to your chosen skin colour for the head.

Arms
I change colours on the inside of each arm so that the row changes are less obvious.
Hand: in your chosen skin colour.
Starting with navy blue, alternate 6nds of each colour.

4.5mm hook for the hat, 5.5mm hook for the ribbing.
I added cat ears, a tail to the butt, whiskers and a cat nose.