Opis:
What are the pros and cons of lightweight backpacking?
First, what does it mean? Generally, it means a 'base weight' of 20 pounds or less. Your base weight is the weight of your pack LESS your consumables like food, water, and stove fuel. (However, even though not including food, water, and fuel, you should include in the base weight the vessels those things are carried in, as Roaming Gnome pointed out in the comments).