1. coffee bag, stand up with zipper,bottom gusset,tear nick and valve2. There is an aluminum layer laminated, which is a very good barrier to resist moisture, oxygen, light etc. Or you can choose the metalized film so that the bag can be clear in the front, silver in the back side. 3. We can weld the one-way degassing valve according to your requirement. The valve is imported from PBI in USA. 4. We can weld the one-way degassing valve according to your requirement. 5. The bags can be plain, or printed with the customized designs and logos according to your requirement.6. Both the plain and printed bag, can be shinny finishing, or matte finishing.7. We can do coffee bags at any size according to your demand, such as 70g, 250g, 1kg, 3kg etc¡8. The bag style can be three-side sealed, stand up with resealable zipper, side gusset, qual-seal etc., just according to your requirement.