SMITTYBILT'S MOLLE BAG ARE BUILT FROM 600D POLYESTER FOR OPTIMUM DURABILITY WHILE THE INTERIOR HAS A WIPEABLE AND MOISTURE RESISTANT LINER. THESE BAGS ARE DESIGNED TO WORK AND FASTEN SECURELY USING MOLLE/PALS RESTRAINT SYSTEM WHILE 5 VARIOUS SIZES PROVIDES FOR A FLEXIBLE AND CONVENIENT STORAGE SYSTEM. PERFECT FOR STORING YOUR DAY TO DAY OR TRAIL NECESSITIES.