The outer fabric is nylon, while the lining uses quick-drying polyester, providing moderate breathability and water repellency while remaining lightweight. Ventilation around the entire body handles early summer humidity, and the back ventilation also functions as a pocket. Piping along the lining adds structure to the relaxed silhouette, while the collar color expresses Whimsy's signature whimsy. The generous sleeve fit is a defining feature, and the ribbed hem creates a flattering drape when the zipper is closed.