Just add water. The Samos Swim Trunk reveals a hidden Bunny pattern when wet. Includes a mesh lining and waterproof bag. Features: Hydrochromic water-reactive print Stretch-mesh lining Quick-dry fabric Fit: Regular fit Composition & Care: Shell: 100% Polyester, Lining: 80% Polyamide, 20% Elastane Machine wash cold. Hang dry. Model height is 4'2 (approx. 127cm) and is wearing a size medium.