The Castelli Neo Prologo Jersey will help young cyclists feel and look like professional riders. Made from light and wrinkle-resistant polyester fabric, this jersey is designed to keep your child comfortable and stylish on the bike. The elastic waistband ensures a secure fit, even when they're standing up to overtake their friends. With excellent moisture-wicking capabilities, this jersey will keep your child dry and warm, no matter how fast they ride. The easy-to-use YKK® Vislon® zipper allows for quick and easy removal, perfect for post-ride activities. Key features of the Castelli Neo Prologo Jersey include:- Made from Microfiber 100% polyester wicking fabric.- Features a clean and classic design inspired by the adult Prologo 7 Jersey.- The silicone elastic at the waist keeps the jersey in place during rides.- Available in sizes 4Y-12Y.- Weighs only 103g (10Y).