• Polyester
• Sleeping envelope bag--made of durable and breathable polyester and polar fleece, can keep warm,sleeping bags for camping
• for adult--with lightweight design and folding design, it is compact and portable,hiking
• for adults--lightweight and compact design, withstand weather conditions, convenient to carry outdoor,envelope-shaped
• Warm --it is very lightweight, portable, and easy for you to carry anywhere,outdoor
• Lightweight --it is convenient to carry along for any outdoor adventures, and its ability to withstand weather conditions,hiking sleeping bags