A net holster holds fishing nets outside a boat and out of the way of anglers inside the boat. The net holster of the present invention has over 100 adjustable positions to keep the net out of the way. The net holster can keep a net in place outside the boat of speeds of at least 30 miles per hour. The net holster of the present invention is designed to hold most nets. A universal clamp and a tie down clamp enable the net holster to fasten to a variety of marine vessels with very little effort.