The Building Blocks Lycra Swim Shorts by Aqua Blu Australia are the perfect addition to any swim wardrobe. Made from high-quality fabric, these boardshorts offer excellent UPF 50+ Sun Protection to keep your child's skin safe from harmful UV rays. - UPF 50+ Sun Protection Rating - Fitted style - Fully lined - Fabric Outer: 73% Nylon, 27% Elastane - Fabric Inner: 88% Polyester, 12% Elastane Fit: - Fits true to size - Fitted style - Internal lace up tie for added comfort - Fabric is breathable and moisture wicking