Making T-shirt underwear[underwear?:underwear paper pattern cutter machine] is easy, nearly free, fun and can allow you to get a perfect fit and the shape and style you want. It's also a great way to recycle T-shirts, saving your favorites from ending up in a landfill. Make T-shirt underwear in any size you need and use the same patterns and sewing methods for making T-shirt underwear from cotton interlock, cotton jersey or even bamboo fabrics.
Find an old pair of underwear that fit well. These are going to be sacrificed to make a pattern for your T-shirt underwear. Cut these apart at the seams to make a t-shirt underwear pattern. You can also use a printable T-shirt underwear pattern if you prefer.
