Vasa carried at least two boats and possibly three.
The main boat, or esping, was a flat-bottomed vessel with 16 oars and a sailing rig. It was 11.7 m long, 3.16 m wide and weighed about 3 tonnes empty. We have the boat itself, as well as most of its equipment, including the rig.
This boat was carrying a smaller clinker-built boat inside it, and remains of a third boat, a smaller version of the esping, were found near the stern.