The Deliciae roll-top backpack lists outside dimensions of 43 × 31 × 12 cm, a 1.3 kg weight, waxed canvas and leather, and a laptop sleeve. Those facts help narrow a choice, but an outside rectangle does not tell you whether a laptop in its case will pass through the opening or fit the sleeve. A useful decision has three separate gates.

Gate 1: measure the device as you will carry it

Record your laptop’s full width, height and thickness with any protective case attached. A screen diagonal is not a width measurement. Then ask for the sleeve’s usable inside width, height and depth. The listing names a laptop sleeve but supplies none of these sleeve measurements or a supported screen size. Do not substitute the bag’s 31 cm outside width for sleeve width: seams, padding and other compartments occupy space.

Gate 2: check the route into the bag

The source describes a roll top with a zip-and-clasp closure, plus slot and phone pockets and an inside zippered pocket. Even if a device could sit inside the main compartment, its cased width must also clear the usable opening. Ask for the opening width when the closure is fully open and the sleeve entrance dimensions. If you plan to take the laptop out repeatedly, consider whether that route leaves room to reach the other pockets without unpacking the bag. That is a planning question, not a tested access claim.

Gate 3: define the roll-top height and your load

The listed 43 cm height has no stated roll-top position. The supplied description also mentions 32 L and expansion, but it does not specify the position used for the measurements or an extended height, and that capacity has not been independently verified. Make a short carry list: cased laptop, charger, notebook, bottle and any outer layer you actually bring. Measure each bulky item and ask for usable internal dimensions in the closed position you intend to use. This avoids treating an outside volume calculation as packable capacity.

Gray, Military Green, Brown and Green Lake are the current color labels; color does not resolve the fit questions. If care or wet-weather performance matters, request care instructions and a tested rating for the finished bag. The listed materials alone do not establish waterproofness. Confirm the sleeve, opening and roll-top measurements before deciding that this bag works for your equipment.