Blue baby hat with ear design from Familiar, made of 100% cotton. - Color: Blue - Design: With ears - Brand: familiar - Material: 100% cotton Thank you for looking. I think it can be worn from newborns to around 6 months old. I received it as a gift, but I kept it without using it. It's new and unused, but it has been stored out of the bag. It will be warm to wear as it gets colder. I have a dog, so please understand if you are allergic.