backpack sturm elite 777M TAC has developed the new Sturm Elite raid backpack, which will allow you to carry everything you need for a short term self sufficient stay in the field. Made of Cordura 500D and Cordura 1000D a high quality and wear resistant material that will provide protection against mechanical damage and a long service life. The side pockets are made of flexible Flex material (90% nylon, 10% elastane) and are suitable for a water bottle and other small items.