Size 1: Head circumference approx. 59.5cm / Height approx. 12cm / Brim approx. 9cm The Insect Shield series, Snow Peak's summer staple, is overwhelmingly breathable due to its mesh material. All materials are made of 100% recycled polyester. The Insect Shield treatment, which has been used by the U.S. Army, gives the mesh fabric insect repellency, making it effective for camping and trekking where you are in contact with nature. This hat with shade covers from the face line to the back of the neck. The shade is removable and can also be used as a simple hat. The size can be fine-tuned by pulling the trimming cord. Half of the hat is mesh-switched for ventilation.