Blistex Odor-Eaters Ultra-Comfort Insoles combine super-activated charcoal, baking soda, and zinc oxide with powerful odor-blockers to keep feet fresh and comfortable. The slim, trim-to-fit design offers cushioning without crowding your shoes, absorbing moisture and reducing foot fatigue. Perfect for those who want all-day odor protection and comfort, these insoles can be customized to fit any shoe size.