The Explorer Cases BAG-PC48 is a padded two-in-one bag made to fit inside the Explorer 4820 waterproof hard case, and it can also be carried on its own. A zip splits it into two separate units. The upper unit is a padded laptop compartment for notebooks up to 17 inches. The lower unit holds cameras, lenses, microphones or small electronics, with adjustable padded dividers in a red interior. It has a rubber-coated double carry handle, waterproof zips with lockable touch-fastener pulls, an external front document pouch, two internal cable pouches, a removable shoulder strap and rubber feet underneath for grip. Internal dimensions are about 480 x 355 x 165 mm. It suits broadcast, photo and video crews, field engineers and medical or IT technicians who carry a laptop and fragile accessories in an Explorer case and sometimes want to leave the hard case behind. The 4820 case itself is sold separately.