This is basically lay-flat fire-operators' hose. It is immensely strong and resistant to wear. Inserting a short length prior to making an eye splice in your mooring ropes will greatly increase their lifespan. Alternatively a piece can be slid along the warp to protect against wear at the fairlead or dockside wall. A short piece of cord can be attached by drilling a small hole in the tubing so that it can be secured in place on the warp.
If the ends are hemmed and stitched closed, this tubing can be filled with lead or steel shot to make a handy weight bag for retrieving halyards.