Guess I'll chime in on this now that I finally saw the ad.
The girl's butt isn't that great...looks kinda flat to me, but it is a nice angle. Maybe she should be wearing some spandex type shorts or tights...??? (Like the girl that I "let" finish ahead of me on my race last weekend so that I would have some "motivation" to go faster. I think I will always remember that contour/shape...mmmmm.) (I didn't actually let her beat me...she was just younger and faster). Anyway, yeah...spandex might improve the ad...
Also, about the first picture that was posted with the guys in boots...I've always wondered...guys that only workout their upper bodies...do they have balance problems? I mean with those scrawny "chicken" legs, wouldn't they topple over?