Afterthought heels are heels that get knitted into a sock after the rest of the sock has been knitted. You can just knit a tube and then decide where to put the heel and cut out stitches and add a heel! I like doing what’s sometimes called ‘forethought’ heels. They’re afterthought heels, but you knit some waste yarn at the spot where the heel will be. Then when you’re done with the rest of the sock, you don’t need to cut any of your knitting in order to add your heel.
Here’s a video talking a bit about afterthought heels:
Afterthought heels are very much like knitting waste yarn for a thumb in mittens or gloves. You have to know exactly where you want to place your heel when you use this method. Usually about 2 or 2.5 inches is allowed for the heel, so you would knit your toe-to-heel length to be about 2-2.5 inches short of your foot length.
Afterthought heels are great for self striping yarn, and for ‘purse knitting’ projects, since you don’t have to fiddle with the heel while you are out and about – you can save the heel until you get home! 🙂
I hope this explains afterthought heels – you should give them a try – they’re fun!