Barry at Blue Line outfitters kindly just sent a 55gallon orange bag, 6mil. It is vastly superior to what I was able to locate ( or afford.) I used it recently cooking for the local cubscouts ( they survived.) I donned it at 4A.M. while starting up my Dutch ovens. temp was approx. 40 degrees with a wind chill . It worked very nicely and was readily spotted by a father buzzing us in his Stearman biplane. The thick mil is bulkier than usual offerings, but carefull folding( to purge air) and my topos inside made for a ready unit in my coat game pocket. An improptu tear test sacking out a colt demonstrated good performance under 1000lbs of shod hoof.