The Castello DL Brown Window Envelope (110 x 220mm) is a practical and efficient solution for everyday mailing needs. Designed to fit A4 documents folded into thirds, this envelope is commonly used for invoices, statements, pay slips, and general correspondence.
The built-in transparent window allows the recipient’s address to be clearly displayed, eliminating the need for separate labeling or printing—saving time and ensuring a clean, professional presentation.
Constructed from durable brown kraft paper, the envelope offers reliable protection against tearing and handling during transit. Its sturdy design ensures that contents remain secure and presentable from dispatch to delivery.
Featuring a secure self-seal (S/S), the envelope is easy to close and keeps contents safely enclosed, making it suitable for both personal and high-volume office use.
Ideal for businesses, offices, and administrative environments, the Castello DL Brown Window Envelope combines efficiency, durability, and convenience for streamlined mailing.














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