Buy Multicolour Savannah Floral Silk Mix Dress | WHISTLES from whistles.com. This silk mix dress has been designed in an elegant midi length and printed with summery florals that lend an uplifting, romantic feel. It comes with balloon sleeves, a button fastening at the neckline and a tie waist, and the skirt is relaxed for an effortless fit and fluid movement. Multicolour Savannah Floral Silk Mix Dress