volume : 26 l, dimension : 48 cm (h) x 29 cm (w) x 20 cm (d)composition : 100% polyester. main features :double main compartment with upper flap & zippered sleeve. large front velcro drop pocket. side vertical pockets with inner multipurpose slots & carabiner. inner mesh storage organizer. 3d air mesh back panel. tactical branded pullers. front & side webbing molle carrier. adjustable sternum system. utility d-ring hangers. side hd print embellishment. woven patches & branding. solid ripstop 600 d tpe polyester. wr non slip material bottom.