I made this hat a few weeks ago for my cousin's baby boy. It's called a Helix Striped Hat and I've made four or five hats with this pattern because it's so clever. You knit with three or four colors on every round, and the stripes spiral up the hat, but you really can't see the color change (except at the bottom when I started the blue, but really, nowhere else). This is made with a cotton blend yarn, which I like to use for babies (soft + machine washable). Welcome to the world, Baby A!