I got the Ibex bra during the Thanksgiving sale, just wore it today in fact. The fabric is the same density throughout (cups and straps), but I don't know what to compare it to. Considerably thinner than the Ibex Zepher T's, maybe just a touch heavier than my microweight SmartWool. It's more supportive than I thought it would be, but it wouldn't be enough for anything high impact. Certainly plenty supportive for hiking, cycling on bumpy roads, etc.