Here is what Chris says about the bags:
Here is a simple product that helps to keep your sailing gear safe, organized and clean.
Your sails, lines and spars are critical to the sailing of your craft, tend to be costly, should be properly cared for. Part of that care can be this bag, which will take "the beating" of road dirt, wind, rain, and sun when your rig is transported on top of a car.
Made of new, 420 denier packcloth, with a nylon cordlock closure.