I bought a few thrift store wool/blend sweaters to make reconstructed sweater mittens, then realized I had enough mittens, what I really needed was warm socks! I couldn't find a pattern or tutorial so I came up with my own. Turns out it's super easy, I can whip up a pair of these in about 10 minutes. So since winter's fast approaching, I thought I'd share.
Here's the sweater I'm starting with. This one's 100% wool but you could use pretty much any sweater that's a thin-to-medium thickness with some stretch to it.
Each sweater can yield two pairs of socks for me. I wear size 9 shoes. The sleeves can be used to make one pair, and I cut along the side seams like this to make the other. The strip I cut here is about 3.5 to 4 inches wide and about 13 inches long, but there's a lot of room for variation, these measurements do not have to be exact. The strip I cut is curved at the end opposite the ribbing of the sleeve or bottom of the sweater because this end will become the toe of the sock.
The other part to cut out is a set of two football shapes, about 2.5 to 3 inches at the tallest and almost as wide as the body piece of the sock. I use this part of the sweater to cut these pieces because then there's a bigger piece left in the middle of the sweater that could be used to make other things.
Lay the sock body strips out 2-ply and cut each across just one ply from the unfinished edge to the side seam. I make this cut about 8 inches from the toe. Sometimes with stretchier sweater fabric I later have to cut some off the toe end to make it shorter but it's better that they come out too big rather than too small. In this picture, the toe part of the sock is spread open to show where the cut is. Below that, the piece is folded over still.
Sewing the football shaped piece into the slit you make is what constructs the heal. Then all you have to do is sew the unfinished seams starting at the ribbed edge to make sure they match up, and around the toe side to where the sweater's already sewn together from the pre-existing side seam.
That's all there is to it. Turn it right-side out and try it on!
I'm saving all the scraps to stuff a pillow because for the past few years I've wanted a wool bed pillow but I haven't had the money. My kitty likes the scraps too.