We are all beautiful so why not celebrate that beauty by playing up the texture you have?
The fluid, more relaxed silhouette is great, IF you have the figure of a runway model. On most people, these clothes can render you instant garden gnome, unless they are tailored to your shape.
Having lived in the desert southwest for some time now and having traveled to some hot places at the hottest time of the year (Southeast Asia in July, anyone?), I have a bit of experience with keeping cool!
After all that, I can tell you that the best sunscreen is.......