Sealed linen bags come pre-filled with superporous bamboo charcoal to naturally absorb odors and moisture from your shoes, or dance bag. Place the Deodorizing Pouch in a shoe or dance bag to remove and prevent moisture and odor. While conventional air fresheners simply mask odors, the carbon-activated charcoal adsorbs and removes odors and moisture while being 100% natural and non-toxic. Each package contains one pair (2 bags) that can be reused for up to two years.