Stay in the strike zone longer by using the Lindy Drift Control Fisherman Series Sock! The Drift Sock was designed to help slow down your boat when drifting or trolling, which comes in real handy on a windy fishing day. Made with a reinforced nylon construction, this sock is built to overcome harsh elements. The Lindy Drift Control Sock provides extra boat control for the best results out on the water. The 42" sock is recommended for 14' or smaller boats in heavy/strong winds, 16'-18' boats in moderate conditions, and 20'+ boats for light/breezy winds.