Mixing classic style with contemporary features, Pioneer Carry’s Billfold wallet is a fully-featured card carrier for the modern man. Constructed using high-density 3PN DWR nylon, this wallet can survive just about anything. The waterproof wallet is more durable and slender than leather, as well as machine-washable. It can hold more than 12 cards and flat bills thanks to six main slots and two internal slots for membership and business cards. And it fits almost all international bill sizes, making it perfect for intrepid explorers. If you’re looking for a slim but resilient card carrier that will last a lifetime, this reinforced wallet fits the bill.