Oakley Duality B1B T-Shirt - Blackout Make a statement, comfortably. The Oakley Duality B1B T-shirt weds the comfort of 100% cotton with Oakley's can’t-miss, throwback logo across the centre chest. T-Shirt Features: Ribbed crew neck collar. Oakley B1B logo artwork on centre chest. 150gr. Regular fit. 100% Cotton. Oakley supports the BCI - Better Cotton Initiative.