Shoe Doctor® Odour Stop is an odour eliminating, carbon controlled foam insole that will keep your shoes fresh, healthy and odour free. They work by killing the bacteria that causes bad smells - rather than covering it up with fancy fragrances. CONTENTS: 1 Pair ADDITIONAL INFO: Shoe Doctor® Odour Stop is an odour eliminating, carbon controlled foam insole that will keep your shoes fresh, healthy and odour free. They work by killing the bacteria that causes bad smells - rather than covering it up with fancy fragrances. Kills Bad Smelling Odours! These carbon activated insoles kill bad smelling odours and bacteria - leaving your shoes smelling fresher and keeping your feet healthy. INSTRUCTIONS: ‍Insert insole into shoe fabric side up. Discontinue use if discomfort or irritation occurs. If irritation persists, seek medical advice. Do not use in contact with broken or irritated skin.