Closed on three sides to offer more security than a standard file folder. Unique design expands without gussets, so your paperwork can be inserted and stored neatly inside, without the interference of gussets. Double top tab. Large 150-sheet capacity. 11 pt. stock. Expandable Document Pocket & Wallet Type: Open Pocket; Size: Letter; Material(s): 11 Pt. Manila; Number of Pockets: 1.