Virtually indestructible the rugged vanguard supreme 27d is an airtight and o ring sealed hard case designed to hold and protect your precious equipment the supreme 27d is waterproof up to 5m and built to withstand the most extreme conditions 40f 40c to 203f95c supreme series is great for airline travel and equipped with an automatic pressure equalisation valve anti slip rubber feet and a solid carrying handle to offer extra durability the large quick release latches lock in place