Our industrial turned contemporary open ended envelope with a great string and button closure. It is in the standard business size for an 8 1/2" x 11" folded in thirds. Environmentally friendly, Paper Bag is made from 30% post-consumer waste and has a natural khaki color. Due to the recycled content, please note that each piece is unique and may vary slightly in color or texture. The US Post Office says that these envelopes need to be hand cancelled (a $0.12 surcharge). However, most branches seem just fine with them. To be perfectly safe, we recommend you bring them in to be hand cancelled and see if they charge you. Size - 4 1/8" x 9 1/2" Sold in packs of 10