Generally the most common of “office” envelopes. Sized to take a sheet of A4 paper folded twice, ideal for invoices, statements and general letters. Available with a choice of window sizes and positions (including right hand windows), Peel & Seal or Self-Seal closures are the most popular for ease of sealing.

This is sized to take either an unfolded A5 sheet of paper or A4 folded in half. As with many of the typical office envelopes, more commonly supplied as either Self-Seal or Peel & Seal and with growing popularity for premium paper weights or more vibrant colours.

Designed to take an A4 sheet unfolded, C4’s are ideal for ensuring that your business correspondence or marketing literature arrives un-creased and professionally presented. Available in a variety of paper grades including our Premium and Optimum ranges to enhance your professional appearance.