This M&S UPF50 Sun Smart All In One Swimsuit in pink mix, designed for children aged 3-4 years, is a high-quality one-piece swimwear option for your little one. Made from a blend of 82% polyester and 18% elastane, this swimsuit is not only stylish but also provides UV protection, has long sleeves, and is chlorinated-resistant, making it ideal for protecting your child's skin while they play in the water. The unicorn character design adds a fun and cute touch to this practical and functional swimsuit.