The #9 envelope is probably the most widely used envelopes for both business and personal letters. These envelopes, also referred to as "Business return envelopes", are commonly used as business reply envelopes as they can easily be inserted into #10 office envelopes. This #9 white wove envelope is ideal for everyday usage and used to send letters, invoices, receipts, and a few sheets of documents. This envelope is made from 24 lbs white stock paper. These #9 office envelopes are perfectly compatible with inkjet and laser printers. The envelopes have a familiar V-shaped flap and a blank windowless design. When ordering, customers can choose to get their company logo and business information pre-printed on these envelopes.

No office supply order is complete without the inclusion of #9 envelopes. These envelopes have the perfect size for sending few pages of A4 documents, receipts, and invoices. Their popularity lies in the fact that they are extremely economical and highly versatile. This particular #9 envelope comes with special security tint. The security tint creates an opaque barrier that completely blocks the view of the contents of the envelope from outside. These are the envelope of choice when sending checks or any document that contains sensitive information such as banking details. These envelopes are made from 24 lbs stock paper and they have a traditional moisture-sensitive seal. These envelopes are also typically used as business return envelopes.

The #9 white envelope is one of the most popular envelope styles globally. Often used for sending personal letters as well as business documents, these envelopes are both cost effective and durable. Businesses often use #9 envelopes to mail invoices, letters, statements, and receipts to their clients and customers. This particular #9 white tinted peel & seal envelope comes with more than few features. These envelopes come with security tint that completely prevents the viewing of the contents from outside. The envelope also comes with Peel & Seal closure system. More convenient than traditional gummed seals, this sealing method requires no moisture. These envelopes are also typically used as business return envelopes.