Crane Papers envelopes are made from soft, durable, Crane’s Lettra and Crane’s Crest 100% cotton papers. Crane’s Lettra and Crest envelopes are designed for letterpress, engraving, embossing, foil stamping and thermography as well as offset and digital printing. If you’re looking to make a memorable impression, there’s no better medium than Crane Papers envelopes to communicate craftsmanship and elegance in equal measure.