This looks fantastic for hiking back into the bush in the middle of winter. Wonder how safe it is? Wonder if it works in salt water? ;-)
“Even though it’s still unnaturally hot for this time of the year, we’re still stocking up for the cold months ahead. First on our list is the Zippo Hand Warmer ($20). This little guy gives you constant warmth for up to 24 hours with just 0.4 oz of fuel, and produces more than 10 times as much heat as disposable warmers. Its slim profile is perfect for pockets, gloves or tighty whiteys.”