23Zero Alaska Black Sleeping Bag 900 -10cALASKA BLACK 900 The 23 ZERO Alaska Black series of sleeping bags are designed for hard wearing Aussie use. Built using a water resistant cotton canvas outer shell with a soft handle 100% cotton flannel lining, the Alaska Black sleeping bag will provide comfort and warmth throughout Australias diverse regions. The dual layer construction minimises cold spots ensuring body heat is retained within the sleeping bag. Featuring a left and right zippered