Bringing them the best performance for outdoor sun protection, the Sunday Afternoons™ Ultra Adventure Hat brings UPF 50+ protection, extended neck cape, and a PVC-free water repellent finish. Full-brim design made with lightweight polyester and nylon. Mesh panels at crown for added airflow. Reflective detailing for added visibility. Adjustable sizing and chin strap. Main body fabric made with bluesign® certified material. • Body: 88% nylon, 12% polyester• Crown mesh: 100% polyester Spot clean. Imported. Product measurements were taken using size LG. Please note that measurements may vary by size. Measurements: Circumference: 17 in Brim: 3 1⁄5 in View Zappos.com Glossary of Terms Sunday Afternoons Ultra Adventure Hat (Toddler/Little Kids/Big Kids)