Abstract: A connector device for board sailors is provided and includes a body engaging harness which supports a boom engaging device. The boom engaging device comprises an elongated arm having a rotatable spool member which is positioned on and compressably engageable against the boom of the board sailing craft. The length of the arm supporting the rotatable spool is adjustable so that the device can be used by board sailors of varying heights. Moreover, the support arm is angularly adjustable with respect to the body engaging harness so that the boom serves to support the weight of the board sailor when the board sailor hangs out from the side of the sail surfing vessel to counteract the force of the wind exerted upon the sail and to control the direction of the sail craft but permits ready disengagement between the board sailor and the craft when the craft begins to capsize or the sail begins to fall.