The measurements: the kraft paper envelopes measure 350 x 450 x 120 + 100 mm (length x height x width + flap on top) the paper is 120 g/m2 thick. Secure interior thanks to its double silicone strip sealing the envelope. Format with 3 bellows that allows the bag to be expanded to optimize its capacity.Different uses: you can use kraft paper envelopes as shipping bags for online commerce thanks to their double silicone strip that facilitates a possible second shipment of the package. Safe and easy returns or second shipments. Paper bags with multiple uses: as gift bags for birthday parties, weddings, communions or christenings. Send your clothing, accessories, household items, cosmetics or footwear products in a safe and sustainable way. Customize or decorate them however you want: you can customize the kraft paper envelope to your liking by adding stickers, stamping your logo, adding drawings or writing phrases or names on paper.