Sea to Summit Premium Blend Silk/Cotton Mummy Travel Liner with Hood, 82 x 36 inch, Navy Blue silk 82 x 36 Ideal as hygienic travel sheets Improves thermal performance of sleeping bags Lightweight, super compact Machine washable & colorfast Mildly increases the thermal performance of sleeping bags Friendly to sensitive skin Double folded and reinforced seams Extends the life of sleeping bag Machine washable &amp; colorfast