Zylioo XXL High Crown Baseball Cap for Big Heads, Large 。Never been worn! Hat Body: 17-24 Micron Pure Australian Wool Felt Sweatband: Soft Cotton Twill Hat Band Accessory: Wool Felt Will and Bear wool is sourced from small-lot farms in Australia. They source short, low-quality fibres the fashion industry doesn\'t use and turn them into high-quality felt products designed to last the extra mile. Wool is natural, biodegradable, recyclable, renewable, and odour-resistant. It naturally regulates temperature, meaning it\'s warm in winter and cool in summer.