Upgrade your everyday mailing with Indigo® C5 White Window Self-Seal Pocket Envelopes – the professional and reliable choice for both home and office use. Perfectly sized at 162 x 229mm, these C5 envelopes fit A4 paper folded once or A5 paper flat, making them ideal for letters, invoices, statements, marketing materials, and other important correspondence.

Crafted from premium 100gsm white paper, these envelopes deliver strength, durability, and a crisp, clean appearance that leaves the right impression. The clear window panel ensures addresses are displayed neatly without the need for additional labelling. With a time-saving self-seal strip, no moisture or tape is required – simply press to securely seal.

Supplied in a value pack of 50, Indigo® envelopes are eco-friendly, recyclable, and designed for efficiency, making them a dependable choice for businesses, schools, and personal use.

Key Features

• 📏 C5 Size (162 x 229mm) – Perfect for A4 paper folded once or A5 documents sent flat
• ✉️ Window Pocket Design – Pre-cut clear window shows address clearly for a professional look
• 🔒 Self-Seal Closure – No licking or taping required, quick and secure sealing every time
• 📄 Premium 100gsm Paper – Strong, opaque white envelopes for durability and confidentiality
• 🌍 Eco-Friendly & Recyclable – Responsibly sourced paper, fully recyclable after use
• 📦 Bulk Pack of 50 – Excellent value for busy offices, schools, or home use