Garter stitch heel and toe. I like the look and I LOVE how easy the heel was (and how quickly it knit up compared to a regular heel-with-flap). But I was off in my calculations somewhere, and these socks are too wide. I hate socks that don't stay up! If I was to do them again with the same yarn and needles, I'd cut my number of stitches by 8 or maybe even 12. At least. Socks really ought to stay up!