Updated for 2014 with Insotect Tubic construction and Pinneco Core insulation, the EMS Boreal 20xB0 is now an even more perfect solution for your lightweight, three season sleeping needs than ever before.. . Pinneco Core insulation features a breathable membrane CoreScreen and fiber layers that work together to actively pull moisture out while keeping the warmth in. CoreScreen is completely sealed to the insulation to reinforce the structure and ensure maximum loft no matter how many times or how long the bag is packed away. Insulation is 100% recyclable and made using advanced manufacturing processes free of hazardous chemicals. Insotect Tubic bag construction utilizes Vertical Thermal Channel and DualVault technologies to prevent the insulation from shifting, eliminate cold spots, and ensure optimum loft and thermal efficiency. 3D hood design cinches around your head to help seal in warmth. Full length, anti snag left zipper features dual sliders and draft tube. Stash pocket keeps small items safe and secure. Webbing loops on the bottom of the bag let you hang it up to dry or air out. Stuff sack and storage sack included.