The Jason Markk Fresh Cedar Shoe Inserts are perfect for getting any odors out of your favorite sneakers. Each sachet is filled with high quality aromatic cedar shavings which work to naturally absorb odor and moisture from your shoes. Cedar is nature’s remedy for keeping shoes and clothes smelling fresh as well as deterring moths and insects! Shake or gently massage the sachets periodically to re-release the aromatics. Put them in your shoes when you store them or take them with you on your travels so your shoes will always be fresh.