Fashion Against Aids review

Voilá.
Got these pieces from H&M's Fashion against aids collection, SO LUCKY to get my hands on them, since they are sold out atm. Also...IN MY SIZE! Score! So...I'm def. gonna keep the awesome denim dress, totally in love with it. The look, fabric and fit. It's a size 42. Yes, it is tight, fits like a glove but the dress is stretchy, thank godness! Sucks that they don't have this dress in bigger sizes, Cause if I would have been just a tiny bit bigger it wouldn't fit. It's mostly tight around my upper arms, nice back and shoulder pads, me likie!
The paisley and leopard pattern dress I'm not so sure of, they are roomy and comfortable. But the fabric? Polyester? Can not be worn a hot summer day, your skin won't be able to breath through this fabric, however I like the fit and the patterns...maybe a cool summer night, or a rainy/windy day out? Also this dress has a deep cleavage, so I pinned it together, but it's actually open all the way down to were the strings hang, so either wear with a top underneath or pin it together, but like I said, you'll sweat, double layers...OH NO! :P Should I keep or send back, I can not decide.
thoughts?