Father son team Dave & Calvin have an interesting way of approaching product creation. They scout out local craftsman, and then design something based on what that particular shop does best. So they'll find an amazing New England leatherworker first, and then design a dapper leather tool roll, instead of the other way around. And it's the excursions for new talent that have led Dave & Calvin to create some of the most innovative stuff we've ever seen. Our favorite: a slim, credit card sized multi-tool that acts as a screwdriver, wrench and bottle opener. All of our favorites.