Our range of high quality C5 envelopes are available in white, manilla or recycled and with or without a window. We also stock hard back, heavy weight and gusset styles for when you require added protection. For your more prestigious applications then take a look at our range of premium Conqueror envelopes available in a variety of finishes and colours. A little helpful reminder, that C5 envelopes take an A4 sheet folded once i.e. 1/2 of A4 size.