The silk cotton blend sleeping bag liner is a handy addition to your sleeping system, giving you superb comfort and improved thermal performance'. '.strtoupper('u')sing two natural fibres blended this machine washable sleeping bag liner is perfect for keeping your bag fresh'. '.strtoupper('t')he sea to summit silk cotton liner comes with its own zipped carrying case so you can easily store it along with your bag and mat.soft, natural fibres, with a less shiny finish than pure silkdouble folded and reinforced seams for strengthlightweight and super compactincreases the life of a sleeping bag by keeping it clean, plus adds a few degrees of thermal performancemachine washable and colourfast'. '.strtoupper('a')lways air dry a liner that contains silk.packs into its own storage caseweight 5 oz 142 glength 6 ft 1 in 185 cmpacked size 5.5 x 3.5 x 2.5 in 14 x 9 x 6 cm