White solid board postal pocket envelopes are perfect for sending documents, magazines and a whole host of other printed media. Measuring 285 x 370 x 30mm* the CP 012.06 envelopes are manufactured from sustainably sourced, high grade, solid board, and are recyclable, biodegradable, climate neutral and FSC/PEFC certified. Featuring a peel and seal strip, these envelopes offer a reliable seal whilst the notched flap allows for repeated resealing; so you can reuse again and again. The bend resistant, reinforced edges make these envelopes ideal for sending all your important documents. *Effective size decreases with increasing thickness