New 12.5' KaBoat VK380 has XL large 17" tubes, extra wide 20" inside space large enough for beach chair,and it comes with large inflatable keel that forms V-shaped bottom of the hull. That helps to improve performance and directional stability. VK380 KaBoat has 3 separate air chambers for extra safety, compared to 2 standard chambers of regular type KaBoats. VK380 has with large size rounded end tubes to support heavier motors.
What makes this KaBoat different from SK385XL and SK470XL is larger diameter tubes, and more inside width. SK385XL and 470XL has 16" tube diameter and 18" between tubes inside width. While VK380 has 17" diameter tubes and 20" inside width. It also has more roomy shape of the bow area than SK385/470XL KaBoats, in addition to V-keel. It like a boat, but more narrow. So, it can go faster with smaller motors.
VK380 V-keel KaBoat comes with extra trhick 15" drop stitch inflatable floor that provided excellent support. Stable enough for standing and fishing from it.
Quick Tip: If you are worried about the air floor being accidentally punctured by sharp gear or fishing hooks, you can get a piece of vinyl flooring from a local hardware store that can be cut out to fit inside the KaBoat over the floor.