When it's hot baggy is often best, especially if I'm just popping to the shops.
On a side note, these white lace up espadrilles and super comfy and about my only 'summer' shoe buy so far this year (apart from some Primark sandals). I've realised why I don't usually buy white canvas shoes, however. They are already really filthy, because I find that I stand on my feet own feet like a toddler when nervous or waiting around.
T-shirt - Acne
Trousers - Topshop
Espadrilles - Kurt Geiger