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White Cardboard Envelopes are a low-cost, efficient, and strong method for sending important documents and keeping them flat during transit. Our range of white cardboard envelopes includes the highly presentable All Board Envelopes, plain and printed Board Backed Envelopes, and rigid corrugated envelopes from ColomPac®, so we’re confident that we’ll have a size and style which is perfect for your needs. All of our white cardboard envelopes have a peel and seal adhesive to give a secure and reliable seal so you can have peace of mind that your items will be safely delivered to your customer. All of our white cardboard envelopes are recyclable, made from recycled and sustainable materials, and are biodegradable. Supplied in boxes for easy handling.