The new Colossus is the largest of the Versipacks, for those who need something bigger than a Jumbo with a ton of separate compartments. Besides every day use, the Colossus would function very well as a camera case for a film or digital SLR and accessories. There’s enough room for an SLR camera body with lens attached, plus an extra lens but it’d depend on the size of the lenses of course. I’d definitely recommend keeping the second lens in a padded lens case to prevent knocking it against the other one. Another role I think that the Colossus would serve well in is as a small team medical/first aid kit pack, which usually consists of medium-small items requiring multiple compartments for organization.