Material: Made of 80% nylon and 20% cotton. Thin soft lightweight and comfortable to wear. Quick Dry Camo Cap: moisture wicking, comfortable and quick dry nylon mesh construction. Ventilation: Applying massive durable mesh vent sets your head free from stuffiness. One size Fit: Adjustable strap is stretchy and has enough length. Fit your head girth very well. You will not feel too tight or too loose. Suitable: Great for fishing, camping, running, hunting, golf, tennis, baseball and other outdoor activities.