Aqua Marina Betta VT-K2 13'6''x33 '' 2019 With its drop-stitch base, the Aqua Marina Betta VT is very stiff, which is reflected in its driveability. The inflatable seat provides sufficient comfort during excursions. Drainage channels also contribute to safe navigation, ensuring that the kayak does not fill with splashing water and is therefore fully manoeuvrable.