Material：420D Polycaprolactam facing fibre imported from Japan;
210D Oxford lining fabric imported from South Korea;
600D water-proof Oxford backing fibre imported from South Korea.
Accessaries：YKK zippers; Shunji nylon woven-belts from Hongkong; UTX fasteners
Shape Design：Nice streamline shape design according to standard human mechanics.
Sustaining Design：Well venting design for human back.
Product Feature：light, fluorescent logo, special design for carrying outdoor water
bag, outlet design for pipet of water bag.