The Wild Things Guide Pack is designed for technical alpine climbing when you are carrying the bare minimum. It holds an insulated jacket, a pair of insulated pants, a hard shell jacket, bivy sack, and half bag comfortably with just enough room left over for a stove, fuel, food, and water. The Guide Pack is just the right backpack for an extended day or overnight trip. Most importantly, the Guide Pack won't break your back – 26 Liter capacity, weighing just 28 ounces.