The coowoz 25L gives you a modest packing budget. That can be useful if you want a small travel load, provided you choose the contents before assuming the bag can cover every activity named in the listing.
Use 25L to impose a clear wardrobe
A warm-weather overnight load might start with a fresh top, underwear, a thin layer and a small wash kit. Add the actual electronics you need, then assess what space remains. The size of your clothing and equipment makes this a test arrangement rather than a guaranteed fit.
If the proposed trip requires spare shoes, a bulky jacket and a substantial computer setup, those items should enter the trial first. They may point toward a larger bag or a smaller equipment list before you spend time optimizing how shirts are folded.
Waterproof wording needs more detail
The listing uses waterproof language but does not establish a verified waterproof rating here. Do not assume it can protect electronics during sustained heavy rain or immersion. A suitable internal protective bag can be a more dependable part of your plan than relying on an undefined marketing term.
Likewise, references to hiking and carry-on travel do not establish a technical load-carrying system or universal airline acceptance. Assess it for the specific light trip you expect to take.
A useful trial before departure
Pack your real items, wear the bag and reach for the things you will need during transit. If it carries comfortably and opens without forcing the load apart, the compact size may suit you. That practical rehearsal is more informative than treating a long list of advertised activities as proof of versatility.
