Warm and waterproof black trapper hat from Polarn O. Pyret. Size 52 cm fits 2-6 years (we wore in the lower end of that range as my kid has a big head). Ear flaps have a Velcro strap to attach under the chin or pin or up on top of the head. Small furry flaps on the outside can also be buttoned down for extra warmth. From our smoke-free one kitty home.