- 100% Silk - Relaxed Fit - Buttoned Cuff - Curved Hem - Crystal Embellishment The Cosmic Zoology Button Up Top With Draped Back is a handcrafted silk silhouette designed by our in house artisans. Reimagined in an exclusive limited edition print, our button up top is relaxed fitting and features a draped back that falls into a curved hem. Decorated with buttoned cuffs adorned in intricately applied crystal embellishment for a feminine finish.