Drawcord opening, draw string doubles as shoulder straps, PUMA branded 150D Polyester lining with PU backing, PUMA No. 1 logo print on front panel. Dope-dye: Dope Dye is one of PUMAs answers to reduce our environmental impact. Dope Dye process reduces the use of water, energy and thus CO2 emission compared with the traditional dyeing process.