The design includes many standard features, such as a master forward with a king-size berth, and a separate enclosed head with shower. In the salon, a dinette seats four and also converts to a double berth. The galley runs along the port side of the salon and is equipped with a propane stove and oven and a refrigerator. A quarterberth is beneath the galley, with access from the main salon. The cockpit area measures 5 feet long by 9 feet wide, with stairs to either side offering access to the side decks.

A wide swim platform eases access to the water and a transom door with gate simplifies boarding. A cruise-ready pack and an aluminum trailer round out the options list on this capable coastal cruiser. With a single 150-horsepower Volvo Penta D3 diesel in the starboard hull and an 80-gallon fuel capacity, the C90 can cruise at 18 mph with a range of 245 miles. Or slow it down to 7 mph for a range of 497 nautical miles, with a 10-percent fuel reserve.