That is precisely the point of a back-inflate BC or wing. Many women feel that when a wrap-around BC is inflated, the inflated panels push in against their chest and sides making it uncomfortable. Remember, that how a BC feels on land, even with a tank in it, is going to be significantly different from how that same BC feels in the water with your gear on. Comfort on land and comfort in the water are two different things. This is a bp/wings style bouyancy compensator that is both infinitely adjustable (one long strap) so will fit your body perfectly, and nothing on the sides and front to press in against you when it's inflated - hence zero constriction. For what its worth, offered for your consideration:Pratesi:I know body structure can mean alot when it comes to comfort. If you have broad shoulders or are large in the bust area, I would think you would need something with less constriction.
http://www.halcyon.net/mc/eclipse.shtml
Best,
Doc