Neoprene Swimsuit UV Protection Keep Warm Long Sleeve Wetsuits Size: Medium UV Protection: UPF 50+ Material Protect Your Children From UV Rays ,no Fear of Sunlight and Can Enjoy the Fun of the Water-Sports. Made of 2.5mm Neoprene + Nylon Elastic Fabric ,neoprene Material Provides Extra Insulation and Protection Against the Cold,effectively Reducing the Water Resistance. Kids Wetsuit Suitable for Water-Sport and Underwater Activies. Flatlock Stitch: Flatlock Stitching Is Used to Improve Comfort .And Flatlock Stitch Is An Important Workmanship Process to Avoid Skin Irritation When the Children Doing Stretching Sports. Back Zipper Design :Using 10YKK Back Zipper Is Tight Seaming and Strong and Durable .Zipper with Long Belt for Easy to Put on and Take Off .With a Layer of Fabric Inside the Zipper to Avoid Zipper Damage to the Child’s Skin. Please Refer to the Size Chart to Make Sure You Get the Right Fit for You.