Recently bought this mug to add to my backpacking gear and tested it out in the Porcupine mountains on Lake Superior in April. Temps got down to 25 and while sitting around the camp fire to enjoy a hot cup of coffee this mug performed amazingly. Coffee stayed hot from first sip to last drip. With the double wall the mug it was comfortable to hold with even the hottest cup I brewed. The only thing that would make this mug better is a lid but not really necessary, it would just be the icing on the cake. For the price this is a no doubter if you were considering a purchase of a lightweight mug for the trail or even around the house.
This review was written in the old system and had content requirements that are different than reviews written today.