Holds more than two years my OM-D EM5 incl. Attached lens + 3 additional lenses + accessories, such as cleaning cloth, spare battery, (small) smartphone, pen, etc. I have the "belt" / waist strap of think tank concerned to and can carry the bag as a fanny pack. Is also wonderful on bike rides (from stomach turned at the back). And all for (relatively) little money. what more do you want!