13 x 19 White Flat Tyvek Envelopes 100/Case

These envelopes are made from 14 lb. olefin. They're ten times stronger than regular paper envelopes. They come with a self - seal closure and are available in plain or with First Class printed borders.

These 13 x 19 white flat Tyvek envelopes are super easy to use. Just open the self - seal closure, put your items inside, and seal it up. They're much stronger than paper envelopes, so they're great for protecting important documents. When using, make sure the items fit properly and don't overstuff. To keep them in good condition, store them in a dry place. They're available in plain or with First Class printed borders, so choose the style that suits your needs.