Quality 6 panel baseball caps are structured front panels that maintain shape with a medium profile fit. Lightweight with 6 air holes, breathable and wear comfortably all season. Adjustable plastic snap closure provides a flexible fit. Protects your skin from sun and keep you cool in summer. Works as sport or workout or sun hat. Ideal for workouts, running, hiking, biking, walking, garden work and daily wear. Circumference: 22.0"-23.2"(56cm-59cm)