Airo Collective's high quality, all-natural leather balm waterproofs, protects, and restores leather. Made in the USA, our premium leather balm is perfect for caring for a Stealth Leather wallet for years to come, and also for any other treasured leather products that need some love. A one ounce tin will probably last much longer than you think. We believe in the philosophy of buying fewer, higher quality goods, and caring well for the products we purchase is a part of that. (Balm is not recommended for suede, nubuck, or pull-up leather)