CPL24 is a panel-loading daily pack people use as a personal item beside a roller, or as the only bag for a short city hop. Not every “carry-on backpack” should be 40 liters.
Evergoods publishes materials and liters on the product page. Empty weight can differ between generations, including last year’s Ultra edition, so read it from the page for your generation.
Shortlist reason: packability of a panel loader at a published 24L. Use it for: daily carry and short city hops; for a two-week trip, look at a Farpoint 40.