Rucksack Assault Trauma Tactical KitsFully stocked with all the necessary items needed for a wide variety of assault trauma injury situations LIFESTRAW has a membrane micro filter that removes 99. 999999% of bacteria, 99. 999% of parasites, 99. 999% of micro plastics, dirt, sand, and cloudiness; weighs less than 2 oz., and lasts through up to 1,000 gal. of water, enough drinking water to last an individual for over 5 years Tough and comfortable 18" x 10" x 11" backpack with reinforced