Outside Guest Blog: Wes Cole offers an expert guide to the gear and logistics needed to tackle the Marathon des Sables, one of the world's most gruelling ultra races.
A repeated theme throughout these gear articles is that it helps to know exactly what you want to do with your equipment. Backpacks are no exception. What is your pack going to be used for? Are you going summer alpine climbing or are you going cragging in the UK? Though backpacks can be multi-purpose, it helps to know.