Key fashion trends of the season: White

Dress and shoes, both from a selection by Yves Saint Laurent, 33 Old Bond Street, London W1 ysl.com Photographer: Jason Hetherington Fashion Editors: Jo Jones and Helen Seamons Hair and Make-up: Juliana Sergot Fashion Assistant: Melanie Wilkinson Model: Erin Fee At Select Photograph: Jason Hetherington Photograph: Jason Hetherington Blazer, £59 If you are going to buy one white wardrobe staple, make it the blazer. The perfect cover-up to go with this season's nude and denim colour palette From marksandspencer.com Photograph: PR Photograph: guardian.co.uk Leather jacket, £350 We admit this jacket could be tricky ... but love all the Dolly Parton-based comments we would receive! We'll be rocking it with denim dresses and floral jumpsuits From frenchconnection.com Photograph: PR Photograph: guardian.co.uk Dress, £65 The perfect white dress for summer days. Love the subtle twists to a wardrobe classic From cosstores.com Photograph: PR Photograph: guardian.co.uk Lace dress, £55 The white lace dress has become a definite high street fixture. Channel Parisian chic with a pair of pumps. We love the simple black bow belt and cuff detail on this version From dorothyperkins.com Photograph: PR Photograph: guardian.co.uk Zip detail dress, £395 The perfect antidote to the floaty white dress. Tough and sexy By Preen from matchesfashion.com Photograph: PR Photograph: guardian.co.uk Ruffle top, £16 This top is so Lolita-esque it hurts. Wear with your favourite old denim shorts, grab an ice lolly, and take up residence on the back porch From matalan.co.uk Photograph: PR Photograph: guardian.co.uk Sequin top, £35 Spring bling means this top is bang on trend. For all those who enjoy a bit of sparkle, day or night From wallis.co.uk Photograph: PR Photograph: guardian.co.uk Shirt, £45 The white shirt is the piece of the season; trust us, you won't be able to live without it. We love, love, love this version from the tailoring king of the high street From cosstores.com Photograph: PR Photograph: guardian.co.uk Shorts, £25 These high-waisted shorts will look great with a striped tee or denim shirt - tucked in, of course Peaches for PPQ from very.co.uk Photograph: PR Photograph: guardian.co.uk Skinny trousers, £35 Not the easiest of items to wear but we think white trousers do scream summer in St Tropez. Get your fake tan and your flats and channel the queen all white trouser wearers worship, Miss Liz Hurley From marksandspencer.com Photograph: PR Photograph: guardian.co.uk Sandals, £34.99 White shoes are a tricky thing. Stilettos or platforms = Essex/Abba = wrong. Opt instead for white tennis pumps, or gladiator flats like these little beauties From riverisland.com Photograph: PR Photograph: guardian.co.uk Bag, £65 We've decided here at the Observer that stuff hanging off bags is back. You're halfway there with this tassled gem. Add some scarves and a couple of keyrings and embrace the sweet sound of jingle jangle From topshop.com Photograph: PR Photograph: guardian.co.uk