[SMELL PROOF & ODOR FREE] We use a Multi-Stage Odor Control system. The first stage involves a metal liner inside the case to prevent any odors from escaping. In the second stage we use a YKK WATERPROOF / ODOR TRAPPING zipper. Third, we developed a rubber gasket sealing system which provides a second line of defense. Our newest improvement is our OdorPax Dividers, which incorporate our Activated Carbon Fiber (ACF) fabric, to absorb the odors inside of the bag. | Once the ACTIVATED CARBON FIBER FABRIC (DISCREET-O-MATIC fabric) fills up with absorbed odor compounds it can then be rejuvenated by heating with a blow dryer, or in a clothes dryer, making it like new again. (replacement dividers available) | [LOCKING ZIPPERS & DURABLE DESIGN] Tough to crack but easy to use. Our patented bags include a built-in 3-digit combination lock. Our hard-shell case can take a beating and still protect your fragile contents. | [CUSTOMIZABLE] The interior is designed to be customizable to meet YOUR needs with removable dividers to fit all of your fragile and odd-shaped products. We even include a metal tool for cleaning (with its own tool pocket). The entire adjustable liner system can be removed to make cleaning a cinch. | [LIFETIME WARRANTY!] We use the highest-grade materials to create the best smell proof bag on the market. As the ORIGINAL locking and odor free stash bag, we continue to lead in quality and innovation. We stand behind our products. Period.