Kiwi Boot Protector penetrates to protect leather and fabrics and allows material to breathe. The unique silicone formula bonds to leather and fabrics to create an extremely tough barrier, while still allowing materials to breathe. Odorless when dried and cured, it is ideal for work, hunting, hiking and other outdoor boots and shoes. Spot test lightly colored materials as silicones may impart a slightly darker, richer tone. For dirty boots, use Kiwi Boot Cleaner before using this product.