How to Make a Rolled Edge in Crochet

I've always loved a rolled edge in knitting, the one that's created with reverse stockinette.  So simple, so lovely.

The wrong side of jersey (T-shirt fabric) does the same thing: rolls back with no human intervention.

It turns out that there's a similar rolled edge in crochet.  And it's just as easily made.

You just need to use a bigger hook at the edge for three or so rounds/rows.  The fabric created by the larger hook will roll beautifully.  In the example, above, I used a 5.5-mm hook for the hat and a 6.5-mm hook for the edging..