A camera lens and a folded jacket need different kinds of space. The Everyday Backpack Zip 20L offers FlexFold dividers so the load can be organized around objects rather than left as one pile.
Build compartments around your actual equipment
The linked black 20L model lists a 270-degree zip opening, dual side pockets and FlexFold dividers. Start with the camera body and the lens you use most, then decide how much separation they need. Do not add every piece of equipment you own simply because a divider can create another slot.
A useful exercise is to simulate retrieving one item while the rest stays packed. If the charger must come out before the camera, or a jacket catches on equipment, revise the arrangement. Flexible organization is most valuable when it supports the way you reach for your things.
Twenty liters must serve both halves of the load
The Amazon title states 15-inch laptop fit for this offer. That is the compatibility claim to assess for the selected bag; related Peak Design versions may describe different devices. Include a protective case in your measurements if you use one.
Dividers occupy space themselves, so the total capacity cannot all be treated as clothing room. For a short trip, first arrange the essential camera kit, computer and charging equipment, then see what clothing space remains. If only a phone handles your photography, a simpler day bag may make more practical use of its volume. Choose the Zip when structured access to a mixed set of objects is worth more to you than an uninterrupted cavity for a large clothing cube.
