Down warmest materials fluffy feature trap heat maintain good ventilation extremely lightweight packable source 700 800 fill power certified IDFL environmental standards sleeping bag jis 90/10 litume safe litume

About down insulation

Down is one of the warmest materials currently. With its fluffy feature to trap heat and maintain good ventilation, it is extremely lightweight and packable. By selecting down which the source and fill power are certified by IDFL and soft fabrics with good anti-down effect that fulfilled relevant environmental standards, customers can use the sleeping bag at ease.