SwimZip Sassy Surfer Sizes: 12-18 months, 18-24 months, 3 years *Please comment with your desired size before purchasing. The lightly stretchy material isn't too tight and offers excellent fit. Unlike rash guards from surfer brands, which are made tight for cold protection, this relaxed design prioritizes sun protection. This rash guard feels like regular clothing and is comfortable to wear all day. It's also stylish and can be used not only at the beach or pool but also for everyday wear, such as playing in the park! The zipper is designed to prevent the fabric from pinching the skin around the neck and stomach. Full-zip rash guards are popular because they are easy to put on small children. High-quality, quick-drying material. SPF50+ (UPF) blocks 98% of UV rays. Highly effective for UV protection. *Machine washable *Formaldehyde tested ●SwimZip swimwear is on sale● https://jp.mercari.com/user/profile/316200040