lululemon go lightly backpack white packable bag Every day 2.0 23L (001) Designed For Casual 𝙇𝙪𝙡𝙪𝙡𝙚𝙢𝙤𝙣 Everywhere Backpack Small 11.5L

The mechanism works either with a 'dog' or 'pawl' design that engages into a cog wheel attached to the handle shaft

Is it light outside

Its not worth the hassle

And personal-item sizes, once you do find them, usually differ from one airline to another: Air Canada: 17 by 13 by 6 inches Alaska Air: not specified Allegiant: 18 by 14 by 8 inches American: 18 by 14 by 8 inches Breeze: 17 by 13 by 8 inches Delta: not specified Frontier: 18 by 14 by 8 inches Hawaiian Airlines: not specified JetBlue: 17 by 13 by 8 inches Southwest: not specified Spirit: 18 by 14 by 8 inches United: 17 by 10 by 9 inches After checking with 12 airlines, we found that the average size of a personal-item bag is roughly 18 by 14 by 8 inches

My recommendations were assuming you would be bank fishing only