S (12M-3T) / L (4T-7T)</br>Visor and Neck Flap - These sun hats are specifically designed for maximum sun protection.</br>Certified UPF 50 UV protection.</br>Washing - Cold machine wash or simply rinse under clean water or hand wash and then air dry.</br>Snug Comfy Fit - elastic fitting so they don't come off easily. Great to use anywhere