The RÆBURN AOP Crew Sweat features graphics inspired by the study of the flight-weathered outer of the SR-71 Blackbird, a strategic reconnaissance aircraft that still today boasts the world record it set 1976 as the fastest air-breathing manned aircraft. Manufactured in Portugal, the AOP (All-Over-Print) Crew Sweat has been crafted from a blend of 50% organic cotton and 50% recycled; the latter the product of repurposing fabric offcuts, giving a new life to otherwise discarded materials.⁠