Carbon Lab Midsole Kit. Everything you need on the road to clean and protect your sneaker midsoles. Including Midsole Sealer, Midsole Cleaner, Premium Brush and Premium Microfibre Cloth. Extend the life of your sneakers! Why Collonil Carbon Lab? Because Outsole thinks it’s important that you go for quality and not for hype. Collonil has been the market leader in shoe care for years and thoroughly tests all its products on different sneakers. The ecological footprint is concerned as well: Carbon Lab is based on safe organic ingredients.