A perennial style favourite, stripes make perfect August dressing. If you can afford it, splash out on a design classic such as one of Sonia Rykiel's multicoloured sweaters from her diffusion line, Sonia, for £145. Or opt for a much more affordable alternative from French children's boutique Petit Bateau - their adultsized Breton striped tops in classic navy and cream are a snip at only £23.50.