While many folks are leaning hard on space-age materials to create minimalist designs, American Bench Craft has continuously illustrated that you can have a super sturdy and reliable minimalist wallet made using traditional techniques. Take, for instance, their USA-made Hammer Riveted Billfold Wallet. Crafted from a single piece of full-grain vegetable-tanned leather and secured with brass rivets (meaning no thread stitching), this 4-card & cash wallet has a spacious interior without any excess bulk. And the brand is so confident in its construction that they guarantee its quality for life.