For comfort that goes the distance

offers excellent edge retention

A midweight cotton blend offers comfort and ease

and building a life you’re proud of

Limited Edition - Thorogood x Purpose-Built x Crimson M6 Folder, Black Mugs & Tumblers For comfort that goes theCrimson Purpose Built Thorogood Limited Edition M6 Folder Built to honor the men and women who put in the work every day, this limited edition collaboration between Crimson, Purpose Built, and Thorogood represents craftsmanship, grit, and the tools that earn their place through usenot display. At its core is a D2 tool steel blade, chosen for its exceptional edge retention, toughness, and dependable performance in demanding environments. The