The ultimate comfy sleeping bag liner, made from ripstop silk with stretch panels.Made from the finest ripstop silk with polyester/Lycra stretch panels along the seams, the Sea To Summit Silk Stretch Liner won\'t restrict if you turn, roll and curl up in the night.Premium AA Grade ripstop silkStretch gussets improve comfort and life of linerIncreases thermal performance of sleeping bagsMachine washable and colourfastLightweight and super compactDouble folded and reinforced seamsWeight: 125g