Byer of Maine's hammock sock allows you to protect an assembled hammock from the sun and insects without having to disassemble the hammock. The hammock sock goes onto the connection end of the hammock and bunches up and out of the way when it's not needed. Slide it over the body of the hammock when you need it. 100% nylon. Hand wash only. Not for use with hammocks with spreader bars. Imported. Length: 15 ft. Color: Blue.