From the J.Boats website:

“The J/160 is designed primarily for comfortable and fast ocean-going cruising for a short-handed crew.  Deep “V” forward sections and gently curved bilges amidships provide easy motion through waves and short chop. The combination of a narrow waterplane, fine entry, and low wetted surface optimizes comfort, speed, steering performance, and smooth motion in a seaway. Moderate flare in the topsides results in less spray on the windward deck. The aft sections show progressively tighter bilges toward a moderately wide stern, and very straight diagonals aft for optimum high-end speed on all points of sail.”