Lining : 100% Polyester. Lightweight fleece fabric..not for extreme cold.. unless active.
Approx. Circumf: 22". (unstretched)
3" L. elastic back
G-1000 fabric : Windproof, Waxable to make water-proof.
Wire at end of soft brim makes it (shapable & packable).
Condition is New with tags. Shipped with USPS mail.