Virtually indestructible, the rugged Vanguard Supreme Series hard cases have innovative features for unmatched strength and durability.  They are O-ring sealed, waterproof (up to a depth of 16.5 feet/5 meters), airtight, and built to withstand the most extreme conditions (-40 F/-40 C to 203 F/95 C).  Supreme cases are great for airline travel with an automatic pressure equalization valve and ability to support up to 265 lbs./120 kg. of exterior weight. Anti-slip rubber feet and a solid carrying handle offer extra durability. Thick, quick-release latches lock in place and steel-reinforced lock holders are great for use with pad locks for added security. Supreme 40F has dense, customizable hexagon-shaped foam for an extremely tailored, custom fit for gear.