Polyester-Spandex Fabric: Designed for comfort, durability, and style. It offers a soft touch, excellent fit, and great stretch. The fabric features acid-printed rotating patterns that ensure long-lasting color without fading or bleeding during everyday use. UV Protection Technology: Equipped with SUN PRO UV, the fabric provides 98% protection against harmful sun rays, blocking up to FPU 50+. *Important Sizing Note: This bikini follows Brazilian sizing standards. Please check the size chart in the product photos for the best fit, with recommendations based on the child's weight, age, and height to ensure the correct size. Size Recommendation Based on Weight (Kids) 53–64 lbs → Size 10 66–75 lbs → Size 12 77–86 lbs → Size 14 88–99 lbs → Size 16 101–117 lbs → Size 18