The black Pelican 1535Air Compact Hand-Carry Case without Foam combines strength and lightness, 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. The Pelican 1525Air case is made of a super-light, proprietary HPX polymer with honeycomb structural elements that 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.