In addition to long service life, Ancopack kraft paper bags provide your products with maximum barrier protection against odors, UV rays and moisture. This is because our bags come with resealable zippers and are tightly sealed. Our heat seal option makes these bags tamper-proof and ensures that the contents are safe for consumer use. You can use the following accessories to enhance the function of kraft paper bags:Local valves, Goglio & Wipf valves, Tin-tie. Starting with 100 pieces of MOQ, you can print up to 8 colors. Recyclable paper, high barrier, high-grade appearance. Available with holes, handles, various shapes of Windows. Regular zippers, pocket zippers, Zippak zippers and Velcro zippers. Can be printed on plastic or directly printed on kraft paper, paper color is complete, white, black, brown options.ALL BAGS MATERIAL,SIZE,THICKNESS AND DESIGN CAN BE CUSTOMIZED.