Detailed Product Description The kraft paper envelopes allow you to send your documents inexpensively. The kraft paper bags with self-adhesive closure are ideal for easily sending mailings. Recommended for economical shipments according to international standards - ISO 216: C4. Quick and easy to close thanks to adhesive closure with protective tape. These eco-friendly kraft envelopes offer optimal value for your shipping. Due to the light weight, you can save on shipping costs. Material: brown kraft paper, surface weight: 90 g/m². Colour: brown. Closure: Adhesive with silicone protective tape. Storage: 2 years. Recyclable product. ISO 14001 certified.