98% Recycled Polyester, 2% P.U. Spandex. Mid Profile. 6 Panel. 3.5" High Crown. OSFA (6 5/8" - 7 5/8"). The YP Classics® Recycled Retro Trucker cap maintains the same quality and trait as its regular counterpart while providing our planet a greener solution. Made from recycled plastic bottles, the cap attempts to reduce unperishable plastic waste. This cap is part of our Rescued and Renewed collection, our solution to lessen the ecologic footprint on our planet.