StockBagDepot High Barrier Matte White Coffee Bags Pouches w/Valve 8oz (25) Premium bags - layered PET / AL / LLDPE 5.4 mil thick with heavy duty resealable ziptop 6 inches wide x 9 inch tall with 3.5 inch gusset One way valve for freshness and burst resistance 25 matte white 8oz pouches