4.5 x 5.5 Envelopes
Optimize your shipping process with our 4.5" x 5.5" packing slip and invoice envelopes. Featuring convenient peel & seal closures, these envelopes are designed for efficiency. The weather-resistant plastic front ensures that your important documents stay protected during transit. Whether you're including packing slips, invoices, or important paperwork, our envelopes offer a secure and weather-resistant solution. Streamline your shipping and keep your documents safe with our 4.5" x 5.5" packing slip and invoice envelopes, designed for practicality and peace of mind.