A large sack designed to store a sleeping bag without compressing it. By keeping the insulation at its highest loft, it lasts longer and preserve its thermal efficiency longer .

• 睡袋不用时的收纳袋；可保持睡袋内的保暖填充在"不受压缩"的状态；可延长睡袋使用的膨账度及保暖力；增加睡袋使用年限.