According to the diktats of the latest catwalks, these sandals with an open heel and strictly no constraints around the wearer's foot will dominate the outfits of the upcoming summer. They range from very chunky and bold versions to the more elegant models with minimal uppers, or are crafted from soft padded calf leather and stiletto heels. Such as those shown on the catwalk by Jacquemus, with interwoven and knotted leather uppers. But the coolest material of the season is terry cloth that wraps around the front of the foot. Mules are to be combined with the crochet cotton pencil skirt by Staud with orange and lemon appliqués at the bottom. For a mini-skirt with a high contrasting hem, or the ruffled and flared model, the superflat mules by Miu Miu are just as glamorous, but above all their comfort is a winner. Made of leather with a padded knot, they can turn a simple outfit combo, such as a t-shirt and jeans, into a sophisticated and even evening one if you choose, for instance, the gold and silver versions.