Choose from LEO self-seal, peel-and-seal, window and gummed envelopes in white and manilla, in DL, C6, C5, C4, B5 and B4 sizes, plus white bubble mailers and Treeline plastic envelopes with a stud closure in A3, A4 and A5.
A C4 envelope takes an A4 sheet flat, a C5 takes it folded once, and a DL or C6 takes it folded into three or four. Envelopes come in packs of 25 or boxes of 250 or 500, as shown in the product name. See also labels and stickers or all stationery.