Available sizes: preemie, newborn, 3 to 6 month, 6 to 12 month, 12 to 18 month, age 2 to 4, age 5 to 8, age 9 to 12, and adult. In your message to the seller, please specify the SIZE and NAME for this personalized item. Available colors are viewable at the right. Example: 6 to 12 month, chocolate brown with baby blue design for Owen. Thank you to Lauren for submitting the adorable photos of Lily in her new hat, to Michele for the adorable photos of Adele & Davis in their new hats, and to Marcia for the adorable photo of Caroline and Olivia!