The K & F Concept Beta 20l backpack is designed to fulfil the requirements of the serious photographer, in transporting camera[s] lenses, attachments etc, plus laptop, drone - whatever their needs and equipment, and keep the contents safe from weather and wear.The information in the sale details can for once be relied on and tells you most of what you need to knowThe internal compartments are endlessly reshapeable by means of internal semi-rigid dividers which can be anchored in any permutation of positions as they grip in place when pressed onto the interior walls. The compartments and pockets can then be accessed by either lifting the ‘lid’ [ie one face of the case] or by separate access zips around the sides.There are straps for odd shaped extras such as tripods, and the shoulder straps are well designed and comfortable, as is the carry handle.The whole concept is well designed and executed to a very high standard, promising a long life.There are simpler, cheaper bags and much dearer ones, but this is good value for what it carries / stores / protects, which is just about anything you’d need for a project, besides which any more equipment would be on the heavy side for carrying.