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 PUMA s 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.