Although I am currently sporting a big slouchy bag, I'm really a sucker for bags with lots of pockets and compartments, like this cargo pocket bucket bag, US$79.50 from Chinese Laundry. This kind of bag is perfect for people who need a little bit of help getting organised. With a place for everything (and everything in its place) you need never look flustered again, as you go scrabbling for your phone/purse/keys. Keep your elegance, and your cool, intact this summer.
Related: Chloe's white 'Edith' long shopper | YSL's 'Muse' in white, now on ASOS! | Leather two-pocket bag from River Island