Sustainable. Make waves this season in our one-piece rash guard, now in two bright colors. Made with UPF 50 protection fabric so your kid can have fun in the sun while staying protected. Fabric & Fit Fabric: 80% recycled nylon/20% spandex, with UPF 50 protection. Feel: Lightweight, smooth, and stretchy. Fit: Front half-zip and bottom snaps for easy dressing.