I'm not even sure where to begin.  These are probably the worst underwear I've ever worn in my entire life.
The worst of the worst is the cut.  No single aspect of these boyshorts fit.  The crotch of the panties is much too long; in order for the fabric to come into contact fully with my body, I have to pull up the waistband of the shorts nearly to my navel.  When I do, it looks more like a bizarre thong than boyshorts, and nearly all of my behind is bare.  Even then, the fabric in the crotch is not wide enough to cover everything that needs to be covered.  I don't think I have the wrong size-- besides that I have other pairs from FotL in the same size that fit fine-- the waistband of the shorts is perfectly comfortable.  If I sized-down to the point where the crotch fit, I imagine I'd be muffin-topping pretty badly.
There's no happy medium.  I know part of my backside is supposed to show with this cut of panty; it's part of the appeal.  If I pull the waistband down so that the fabric is over my legs and hips, the middle hangs between my legs.  It's infuriating.
The fabric is SO cheap, as well.  Flimsy and thin, as well as being itchy in that way that only synthetic fibers can manage.  They don't breathe.  On top of that, the patterns are hideous.  Just ugly.

The only reason to ever buy these panties is to give to someone you hate, but whose presence you have to tolerate.  Trust me, their having to wear these is the best revenge you could ever get.