I have made a few of these lightweight biking hats for D over the years (he wears his navy hat pretty much daily during the summer), and I also made a super funky little one for Felix when he was just a wee dude, but sadly, it no longer fits.
What to do? Well, make another one, of course. He needed one (okay, I needed him to have one) so I whipped this little gray hat up over the weekend. I created the pattern through much trial and error, so there was (as there always is) a bit of fudging involved. Lucky for me it fits really well and he will actually keep it on for a few minutes at a time...if highly distracted.