Ordered a sz 9, which is what I wear in the Hanes stretch brief.  I did not try these on (being underwear), but holding them up to my size 9 Hanes, they appeared to be AT LEAST 1/2 size bigger.  I sent them back in exchange for a size 8, which seem to be about 1/4 size smaller than my size 9 Hanes!  Couldn't win in this situation.  They work, but my sz 9 Hanes are a more comfortable fit, so I won't be ordering Fruit of the Loom again (unless my body size changes to better fit one of the underwear sizes).  The waist band is also different, and I'm not sure what I think of that yet.  Will update if it turns out to be problematic.  Overall, they're probably a fine stretchy brief, just not my preferred brand as far as sizing.