Quonnie kids swimwear and apparel is designed for fit and flexibility with the understanding that children come in all shapes and sizes. Every suit can be mix and matched meaning you can combine tops and bottoms and prints to your or your child's liking as well as sizes for best fit. I recommend sending a chest, waist and hip measurement so your suit can be custom fit to order.Specs:- uva blocking at 99.9% and uvb blocking at 99.6% with a upf rating of 50+- handmade in ct in smoke free, pet free environment- fully lined- swim elastic in chest, waist and legs for best fit- made from sport lycra, fabric is breathable and quick drying with great stretch and beautiful sheen. Washing instructions:this fabric stands up to repeated pool parties and washings with great color stay. It is also great beach fabric, as it doesn't get the large amount of sand embedded in the weave, like other cheaper swim fabrics do. Wash separately in cool or warm water on a gentle/delicate cycle. Machine dry on a low temperature setting, or line dry.