MATERIAL- This 50L tactical backpack is made of Water-resistant 600D polyester. MOLLE WEBBING- This internal backpack can hang on small items, or for attaching additional tactical pouches or gear. Can be used as a carry-on. QUICKLY ACCESS- The internal frame backpack has large zipped access at front that can quickly access to the main compartment,opend as a luggage. SUITS- The hiking backpack is well used as 3 day assault pack for hiking,trekking,camping,hunting,shooting,climbing,traveling.