These blippi shorts are perfect for summer wear them to the pool or park. These are not double lined - just a single piece of material. You will probably want your little one to wear something underneath (similar to board shorts).These are a cotton spandex material and are not your traditional swim material but they are made for the water they do dry quickly and double as regular shorts as well. This item is made to order and takes about 4-5 weeks to receive. Please keep that in mind when ordering. This outfit runs pretty true to size so i would recommend ordering your child's usual size. Please note: colors may vary due to monitor settings. This item is not a licensed product and i do not claim ownership over the images used in these designs. Please be advised that you are paying strictly for my time to create your item and for materials used.