Outdoor quick drying multi-function fish hatFabric: Nylon with soft mesh; chin cord and plastic stopper.Cap brown is with nylon outside and mesh inside、brown outside can be detachable separately Size:58cm for circumference x 8cm brim x 9.0cm crown heightThis cap is with multi-function : UV protection (UPF50+)、sunblock、heat insulation、waterproof、windproof、sand prevention