You're right about this - it used to be pretty difficult to find really large clothing sizes. But then there also weren't nearly so many super-morbidly obese people. My mom ran a small clothing business and we used to get t-shirt catalogs all the time. The sizes went up to XL - there was one page, sometimes two, in the back of a limited selection of tees that came in bigger sizes. Usually just basic styles, very limited color selection and nothing fancier like baseball shirts or ringers. One time she and I splurged and bought ourselves some 3X shirts and wore them as nightgowns. I had mine through college, and I could tuck my legs up inside and pull the neck over my head like a tent. It was literally like my own personal tent. Now she'd probably be hard pressed to get smalls and extra-smalls.