Innovative five-layer technology conceals the scent of anything placed inside. Each bag features: -Mesh layer allows odors to be absorbed into the carbon so they can be neutralized -Non woven layer condenses carbon and maintains surface area -Activated carbon lining absorbs and neutralizes odors -Durable protective padding forms a protective layer to keep what’s inside safe and secure -Leather air-tight seams, sewn with a high-stitch count, to help minimize air from escaping -Sealed rubber zippers preserve just the right balance of moisture, so your contents stay fresh