Treat your feet and the planet thanks to these 100% vegan comfort insoles that keep 100 grams of CO2 from entering the atmosphere. Designed to protect and prolong the lifespan of your shoes' inner insoles, these cushions are made with an innovative material derived from EVA foam algae. USE: Made with premium microfiber lining and provides all-day comfort. Ideal for all season shoes. INSTRUCTIONS: Insert in any types of shoes. Change once overused.