DOUBLE Treksilk GRAY ART SILK Liner Sleeping Bag Inner Sheet Hostel Sack Backpack Travel for couple Travel Accessory - Protection Bed Bugs Sleep sack/ Double sleeping bag liner keeps your sleeping bag clean, easy to use in budget hostels and protect you against bed bugs. Fabric: Art Silk Size: 83"x 59" (210 cm x 150 cm) Machine washable, light weight, easy to care TREKSIK 60 days guarantee: satisfied or reimbursed