Should you consider the stitching on a retail store-purchased professional Tee, it’s sewn having a coverstitch (uncovered on some sergers or sewn using a special coverstitch device). The best way the device stitches on the wrong side of the fabric will allow the front stitching to extend a little bit. https://briotee.com/product/am-i-extra-or-are-you-basic-tshirt/