 Cylinders suitable for sidemount diving are usually freely available for rental, unlike manifolded twin sets for back-mounted use, which allows the traveller to conduct technical or overhead environment dives without having to source twin cylinder sets.When diving in remote locations, the transportation of single diving cylinders, especially by hand, may be less physically taxing.Sidemount harness can be lighter and less bulky than back-mounted alternatives – allowing for easier and cheaper air travel.