Bangora straw cowboy hat, by the Turner Hat Company. Bangora straw hats are popular for warm weather due to their lightweight, durable, and ventilated design. Material: It is made from Bangora straw, a lightweight, woven material known for holding its shape well and resisting cracking. Design: The hat features a classic cattleman crease crown with ventilation holes woven in to help keep you cool. Hatband: decorative, multi-colored braided or woven hatband. "XXXX" (or 4X) rating on a cowboy hat indicates good quality relative to lower-rated hats from the same manufacturer. For a straw hat like the one pictured, the X rating refers to the fineness of the straw reeds and the tightness and intricacy of the weave. A tighter, finer weave is more durable and resilient.