Check out this review on a very rare British 24hr Cold Climate Operational Ration Pack - used by Royal Marines and other troops in arctic conditions. Containing 4,200 calories, yet only weighing 3 pounds, this 24hr Cold Weather MRE is the gold standard in modern Cold Weather Ration Packs. Stay tuned, gnarly Rations from the 60's (with smokes!) coming up in 5 days. Before then, I am working on a Polish SRG-3 Single Meal, Canadian IMP Pork with Wine Cream Sauce, and also getting a Czech BDP-1 in the works. So stay tuned! -Steve