A scrappy binding. I would have preferred it to be cut on the bias, just for the look, but I didn't have quite enough for that. The backing was just a solid white flannel. Nice and snuggly.
If you are going to make a quilt using men's shirts - I would suggest NOT using the ironed pleats (in backs and sometimes sleeves). These folds didn't come out even after I washed the quilt.
If you are interested in dimensions or a tutorial - please let me know in the comments!
Thanks for looking!