18" exterior pockets includes 3 flap-covered pockets plus 1 large drawstring pocket to keep small parts from spilling out. Utility knife pocket and measuring tape clip. Adjustable, nonslip padded shoulder strap. Pop-open design and large interior compartment allows for easy access to tools and parts. 14 interior pockets including 1 zippered pocket to secure valuables. Easy double-pull, heavy-duty zipper. Heavy-duty poly and ballistic poly fabric construction includes base pads to protect bottom.