To expand the envelope, simply open it, rest it on the gusset and run your finger along the interior bottom of the envelope to widen it! Other reusable envelopes don't provide this feature, so they can only hold a very limited number of sheets.
Comes in sizes M-5XL Made from 100% polyester. Orange Mesh Contrast Hi-Vis Vest, Large, Class 2 wide contrast color tape. wide reflective stripes on 4 in.