I purchased the charcoal grey, heather grey, royal blue, red, mustard and olive green. Needless to say I love love love these tops! The charcoal grey material is heavy and thick. The Heather grey is thinner than the charcoal grey and bit more stretchy. The royal blue almost looks a bit purple to me, but that could just be eyesight. The royal blue is extremely stretchy and also lighter in weight than the charcoal. The red is my absolute fav! Super nice material and a true red! The mustard is also super nice and true to color. I haven't received the Olive yet, but I will update.  They are all Rayon as stated in the description.
I'm still going to buy the pink, black, wine and maybe a tie dye. I'm a size 12 5'8 and these hang perfectly off of the shoulder. I wear mine with  racer back tanks underneath and it looks nice, because my bra strap isn't showing. They look good with jeans, shorts, skirts and leggings. These tops also hide problem areas extremely well. They're oversized so don't expect a fitted shapely top. Four stars because I haven't washed them yet.