Captodor Footwear Odor Destroyer is a complex triple action biotechnological product developed specifically to destroy foul odors at the source impregnated in all footwear (running shoes, cleated shoes (cycling, soccer, football, soccer, golf), sandals, boots, skates, ski/snowboard boots, etc.): it neutralizes, destroys and deodorizes while leaving a refreshing Fresh scent for instant freshness. It is totally safe to use inside footwear. It’ s formulated with ingredients that can be used on various materials without causing damage or discoloration.