Jillson Roberts Recycled Medium Tyvek Padded Decorative Shipping/Mailing Envelopes, Butterflies, 6-Count (MY170) Ship beautifully, responsibly and easily with Tyvek designer padded mailers; medium foam-lined mailers have an interior measurement of 9 x 12 inches Envelopes are printed with linseed and soybean oil-based inks; foam lining is made from 100% recycled resin Tyvek envelopes are tear, puncture and water resistant; contents are protected by foam padding; no tape or cutting necessary Made in the USA: Jillson Roberts Tyvek padded mailers are USPS, UPS and FedEx approved Jillson Roberts offers a beautiful selection of environmentally sensitive wrap, wine and gift bags, tissue, curling ribbon and Tyvek padded designer mailers suitable for a wide range of occasions