Above is a clip from the most recent Hammer Nutrition Endurance News, which features a short blurb on some feedback that I gave on Hammer fuel. Hammer fuel such as the Gel, Perpetuem and Endurolytes are a critical part of my strategy for efforts in the mountains, whether on a bike, running, backpacking or climbing. This stuff works really well for me and I appreciate the quality and purity of the ingredients. It makes the endurance epics and daily training that I love all the more enjoyable.