A flat hull is one of the defining features of a jon boat. A flat hull reduces draft and increases stability. Jon boats are one of the most stable boats on the water. Lean from side to side or move from bow to stern, and the jon boat stays planted. The disadvantage to a shallow draft comes in rough water performance. Wind will blow a jon boat across the water, and the flat hull slams through waves. But, for anglers looking for a stable fishing platform, you can’t beat a jon boat.