These slouchy trousers from Monsoon (£55) are perfect for the summer, the linen content means they will look their best slightly rumpled and billowing but the rayon content will keep a modicum of crisp. Team the dark slate colour with pale blues, dove greys and white for a cool look; the trousers will be equally at home with a casual t-shirt and flip flops or smartened up with a tailored short-sleeved shirt and pumps for work.