Oversize Fleece Warmer Flap Cap - Brown (For Big Head) 100% Polyester Charcoal Oversize Anti Pilling Fleece Warmer Flap Cap for BIG HEAD One size fits most with elastic band, fitting XL to 3 XL. Crown measures 5 inches deep, 6 panels, 4 inches long bill. Flap measures 3 - 4 inches wide. Soft, thick and warm material.