In suède or with hippie maxi fringes, blazer cut or knee-lenght: the vest is the passe-partout item for the Spring Summer 2015 that your wardrobe must include. Your are more of a rocker? Choose a denim version, maybe decorated with beads (or you can apply some pins yourself ). Your look is more minimal? Your must-have piece will be a sleeveless blazer with a tailored and neat silhouette. In the gallery, the ideas on how to wear it straight from the catwalks and our favorite ones to buy online.