Rucking is simple. But simple doesn't mean there's nothing to know before you start. Get the basics right from day one and you'll be building fitness consistently within a week. Get them wrong and you'll be dealing with a sore back and a rucksack you don't want to look at.

What actually is rucking? And why is everyone talking about it? This guide answers both questions — clearly, without the jargon, and with enough d