Camo Coll Outdoor Camouflage Bucket Boonie Hat Hunting Fishing Camping Hiking Sun Cap(18 Colors) Fabric: 60% Cotton + 40% Polyester Diameter(inch): 6.9 inner,12 outer Have ventilation holes on both sides, used for ventilation and heat dissipation 18 colors to choose from, can match with different clothes and different occasions The hat is suitable for hiking, camping, climbing, barbecue, fishing, tourism, and other leisure outdoor sports