The Vision harness runs a bit on the small side, the women of North Beach Windsurfing suggest that you buy one size bigger than you normally would need.
Dakine Vision Women's Seat Harness
A fantastic seat harness for women from DaKine! The Vision has a medium to low adjustable hook height, power-clip buckle system and comes with a spreader bar and spreader bar pad. A super comfortable seat harness that is actually designed to fit your hips! Comfort features include the freedom shape spreader bar pad and ultra-comfortable leg straps as part of the 8-point load dispersion system. It's all the features you need in a sleek profile.