Buff Explore Booney sports hat - provides top protection from the sun thanks to its wide brim and highly adjustable fit. With this wide hat you will protect your face and neck from the sun and you will also stay cool on the hottest days thanks to the side ventilation. * upper material: 100% recycled nylon, strap material: 100% recycled nylon and 100% recycled polyester, edge: 100% recycled nylon, inner sweatband: 100% recycled polyester * UPF 50 certified sun protection against ultraviolet (UV) radiation produced by the sun . Fabric samples tested for UV protection in accordance with international standards. * prevents overheating and improves comfort by wicking moisture away from the body through the fabric * drawstring under the chin * internal sweatband for better sweat drainage * suitable for: people who enjoy outdoor activities in nature, such as hiking, trekking or simply walking in forest * collapsible hat - can be packed into a pocket * circumference for size S/M approx. 57 cm, L/XL approx. 59 cm * design for each piece is laid out differently