For your little explorers, a hat as rough and tumble as they are. As they adventure off trail, moisture wicking fabric keeps them comfy while sun protective fabric shields them from UV rays. A reversible design gives you two hats in one. Dark Teal Blue/Olive (TO). Medium (MD) fits 2-5 years (20" - 21-1/4"). Large (LG) fits 5-12 years (21" - 22-1/4").