Top 10 Best 6 envelopes in 2026

Main highlights

• •48 PACKS ENVELOPES 6x9: you will receive 48 6x9 inch 6x9 envelopes self seal that we have prepared for you. enough quantity for your use and needs, perfect 6 x 9 envelopes for use at home, office, school, and more.
• •HIGH-QUALITY KRAFT PAPER: Our catalog mailing envelopes 6x9 are made of 105gsm high-quality yellow kraft paper, which is sturdy, durable, and tear-resistant, and can better ensure that the items will not be damaged in the process of mailing and transportation to ensure the integrity of the items.
• •STRONG SEALING ADHESIVE: These 6x9 envelopes self seal come with their strong sealing adhesive, no need to prepare separate glue. To use, simply peel off the white lining, fold, and press for a few seconds to seal the envelope, keeping your mailings safe and long-lasting in a completely airtight environment, and the super-sticky nature of the sealing adhesive ensures that items won't fall out of the envelopes during transportation.
• •PROTECT PRIVACY & FREE PRINTING: 6x9 envelopes self seal is completely opaque, no matter if you put any items in the envelope, you can't see the content inside at all without opening it. High-quality yellow envelopes 6x9 have a blank surface, no matter laser/inkjet printing or DIY envelopes, there will be no ink bleed or blurred handwriting phenomenon, please feel free to use them.
• •WIDE APPLICATION: yellow kraft envelopes can be used in many times, customize your envelopes by printing patterns and text, you can use it to mail documents, letters, invitations, photos, and so on, and it's also a good choice to store documents in daily life.