Lanzom Outdoor Sports Hat Quick Drying Mesh Cap Breathable Runner Cap Sun Hat Material: Lightweight & quick drying polyester Size:One size fits most by 55-60cm head girth with velcro closure at back Mesh panels on both sides for breathability keep you cool Ideal for runners, golfers, tennis players, and any indoor or outdoor activities Quick-dry and ultra-lightweight polyester fabric, super breathable and comfortable with cotton sweatband.