bottom gusseted bag 1) meterial: NY/PE 2) advantage: safeaa anti-oxidation 3) ... , matte OPP, pearlised OPP, etc. Laminated layer is optional.AdvantageSecurity, biodegradable, recyclable, eco-friendly, high barrier property against oxygen, moisture ,light ... per your requirementStyleThree-side seal bag(with zipper or not), side-gusset bag, center seal bag, stand-up bag(with zipper or not) and ...