The custom smell proof stash backpack is fully carbon-lined. The carbon, charcoal layer inside the pouch completely neutralizes odors, so your cannabis products stay scent-free. This smell- and odor-proof design helps keep your gear discreet when you're on delivery runs, at events, or traveling. Combined with the water-resistant fabric and zipper, the backpack is built to protect your contents and contain odors—ideal for dispensaries, delivery services, and cannabis events.