My mother used to sew pants similar to this one for my dad and uncles. My dad and practically all the men of his generation and older,used them as underwear and pajamas. They were generally made from plain white cotton fabric with a drawstring. I remember how all would fold the bottom a tuck them under their socks. We did not find them appealing at the time.
Recently, I decided to make some using different fabrics. This one is made with fine printed cotton. They are really comfortable and great for lounging.
There is an insert in the back for movement and comfort. I did not have much fabric left for the insert after cutting out the pants so I joined a few pieces of the scraps I had left until I had enough for the insert. I quite like the added detail.
For a top I upcycled one of my husband’s torn white t-shirts.