Briggs & Riley Adapt Expandable Brief, Black, One Size 400D lightweight nylon twill fabric resists moisture, wear, dirt and abrasion Durable, soft-touch neoprene handles provides a comfortable grip Ergonomic, lockable zipper pulls Zip-around expansion adds two inches of additional packing space. Outside expanded depth 8.4 inch SpeedThru pocket for quick storage of items at security checkpoints