100% cotton. Screen print graphics. CWIP-MS26. I022620 67300. Carhartt Work In Progress (Carhartt WIP) is the avant-garde way of living the Carhartt brand and reshaping the outstanding Carhartt legacy. Founded in 1994, Work In Progress introduced a selection of classic products from the original work wear range into a new market. The authentic Carhartt products quickly became popular with both fans of traditional US heritage garments and with the nascent European urban culture scene. Carhartt Work in Progress carefully adapted and reinterpreted the original cuts while remaining true to Carhartt?s core values of quality, durability and comfort.