Billabong Women's Dad Cap For salty bangs, red-eye flights, and every coffee run in between. The Dad Cap in True Blue keeps things easy with a relaxed unstructured crown, curved brim, and adjustable back. Woven 100% cotton feels soft from day one and keeps breaking in every time you throw it on. Fabric: 100% cotton woven fabric Fit/dimensions: Unstructured, low-profile crown; one size with adjustable back closure for a custom fit