Wide Brimmed Boonie Hat that is fully MTP compatible. Features include 5.5cm wide brim, a detachable neck and back of the head sun shield, webbing head band for adding foliage and other items and adjustable chin strap. There are also four metal air vents ensuring breathability and comfort. Manufactured from 50/50% cotton polyester mix. Head Circumference Sizes - Small (54-55cm/7'), Medium (56-57cm/7 1/4'), Large (59-59cm/7 1/2') and Xtra Large(60-61cm/7 3/4'). Weighs - from 120grams. Colour - multi-terrain.