Liner for immersion suit composed of polyester filling with black nylon shell. The wrists each have a nylon zipper running around the circumference with a metal pull. The ankles have black nylon zippers running around circumference. The centre of the liner has a double zipper running from throat down. On the inside on the wearer's right side is a 5 cm x 7 cm manufacturer's label with washing instructions. At top centre of inside of garment is the letter L.