EXTEND THE LIFE OF YOUR SLEEPING BAG: Both down and synthetic fills need room to "fluff" up - that's where the warmth comes from. When you keep your bag compressed for too long, say your compression sack, you're causing the insulation to lose resiliency and it's long lasting lofting ability compromising it's performance. Use the OmniCore Designs 110L Sleeping Bag Storage Sack to extent the peak performance life of your sleeping bag. Did You Know: How you store your sleeping bag when not in use will go a long way in determining whether or not your sleeping continues to perform. Why. Whether your sleeping bag is down, synthetic or something truly amazing like the multi-down insulation found in our flagship M-3D line - all insulation (or loft) all works on the same principle: they trap air to keep you warm. For loft to work well, it needs to do just that - stay "lofty" Pro Tip: It's super simple. When not in use, store your sleeping bag in the OmniCore 110 l Sleeping Bag Storage Sack. The large mesh design allows the sleeping bag to be store loosely and helps the loft retain it's shape. MULTI-PURPOSE: Our Mesh Storage Sack is perfect not just at home for storing your sleeping bag or oversized comforter or duvet, it's actually perfect for all situations where you need lightweight easy to carry storage bag to haul around a bunch of gear. Laundry day around the dorms will never be easier, no more chasing loose soccer and footballs all around the garage.