- 100% Silk - Hip Length - Straight - Relaxed Fit - Long Sleeve - Unlined - Side Split Detail - Crystal Embellishment Our Navas Nouveau Collared Shirt With Side Buttons has a body-skimming design that contours with subtle elegance. Lavish blouson sleeves with a split cuff complete this polished silhouette. The print encapsulates the beautiful florals and architecture of The Plaza De Espana.