Thanks to an innovative new technology, CARBONDIVE 300 tanks are produced with a carbon cylindrical shell. Thus an "lightweight" CARBONDIVE 300 cylinder is up to 50 times more resistant than a common scuba tank and has a 300 bar service pressure.
Your advantages are significantly higher air volume which allows you to do longer dives at just almost the half of the weight, compared to a steel cylinder with the same volume (e.g 12 l vs. 12 l).