Combining strength and lightness, the black Pelican 1555AirWD Carry-On Case with with Dividers is watertight, crushproof, dustproof, and optimized for travel. For travel by air, Pelican has aggregated available airline rules for maximum overhead and check-in dimensions, with the goal of creating a case that conforms to their requirements. Of course, it is always recommended to contact your carrier before departing. Your 1555AirWD case is made of a super-light proprietary HPX polymer, with honeycomb structural elements, which is up to 40% lighter than most other Pelican polymers. This confidence-inspiring design has been drop-tested on concrete on all sides and corners while loaded with gear. Not content with stopping there, the case has also been tested with a 28 lb steel dart dropped from a height of three feet. The case has ABS double throw latches (that accept a user-supplied padlock), a watertight O-ring gasket, an automatic purge valve, and stainless steel hasp protectors. Users will appreciate the stylish conic curve lid shape and rubber overmolded handle. And for easier case ID, there's an attractive and removable polycarbonate card holder that may be placed on the front or side of the case. Besides being lighter, Pelican has also added some nice touches to the divider system. The system features a full-sewn tub with a felt exterior and touch-fastening padded dividers. Users will appreciate the bright yellow, high-visibility fabric that makes finding gear in low light much easier. Three elastic hold-down straps keep gear extra secure while preventing unwanted movement. The divider set includes one tub, two large dividers, six medium dividers, and three small dividers.