Im on my 2nd Astro C40. It does what I need it to do. 5 inch shoulder to shoulder span, sitting right around a 34 inch waist (in American sized pants, so actually by the measuring tape probably around a 36 inch waist), and am about an average to athletic build depending on when you catch me lol. The same as I would the Sport. If you buy this shoe at the full 69. Youll hear wind noise from this rack, even when bare, at any speed over 30 mph, but hey, its a roof rack. These shoes are very flattering to feet that we may not want to fully bare to the outside world, and they feel like heaven. I like the price only because its cheapet than other shoe organizers of this type. Let go of the button as soon as it blinks pink. Up till today, I still have the same issue.