Expandable Envelopes - C5

Expandable envelopes provide a practical and spacious packaging solution for items that require more depth than a standard envelope. Manufactured from strong recycled kraft paper, these envelopes feature a reinforced gusset that expands to accommodate thicker contents without straining or tearing. This added capacity makes them ideal for a wide range of products, including PiP boxes, folded clothing, catalogues, brochures, booklets and padded documents that need extra protection during transit. Unlike flat envelopes, expandable envelopes maintain their shape when filled, offering greater stability and support for your contents. The durable kraft paper construction helps provide natural cushioning while keeping the overall weight low, helping businesses manage postage costs more efficiently. This balance of strength, flexibility and lightweight design makes them well suited to eCommerce operations, offices, fulfilment centres and independent retailers. Made from 100% recycled materials, our expandable envelopes are an environmentally responsible packaging choice that supports sustainable shipping practices. Available in bulk quantities, they also offer a cost-effective solution for businesses that regularly send medium-sized items while maintaining a professional and reliable packaging standard. Size: 234 x 178mm