oddly enough, i really like gapbody's seamless undies. i bought a bunch when i used to work at gap almost 3 years ago, and i still wear them all the time. they come in a lot of great no-show colors (there's a really nice light beige-y pink) and the material they're made of is super soft, stays put without digging, and stands up to 3 years of washing and drying so far. they can also be had for very cheap when they phase out colors seasonally.