1.with bottom gusset and degassing valve 2.Durability material ... can printed in the bag;Customized structure, size,logo, style and printed design are welcome. Name:coffee bag with valveMOQ:20000PCSSize:Base ... separating and cutting, bag making, examing Style:The bag style can be three-side sealed,Stand-up w zipper bags, Sides gusset ... 250g, 500g, 1kg, 2kg, 3kg, 5kgetc…, side gusset coffee bag with valve