Pull on this pure cotton maxi dress for a seriously swishable look. It has a regular fit, with a tiered skirt for subtle shaping. Gathered cuffs give the long sleeves a touch of volume, while a tassel tie at the v-neck adds a playful flourish. We only ever use responsibly sourced cotton for our clothes.n M&S Collection: easy-to-wear wardrobe staples that combine classic and contemporary styles.