When heading out for a weekend or longer trek, you'll need to take more kit for sleeping, shelter, cooking etc, so a larger rucksack is required. Larger rucksacks are generally packs over around 40 litres which are designed to carry all of your gear when camping or backpacking, often over long distances or for extended periods of time. Find out how to pack a larger rucksack to make the experience as enjoyable as possible, so the rucksack is a good fit and is comfortable to carry.