I'm shopping for a new backpack. I like the features and especially the price of IKEA FÖRENKLA, and there are two versions:
903.135.63 — 11cm×28cm×39cm, for a total of 12 litres (12012cm³) or 3 gallons
303.292.08 — 11cm×28cm×48cm, for a total of 15 litres (14784cm³) or 4 gallons
As I am 190cm tall (6'3"), I'm thinking that perhaps the taller version would suit me better, however, according to https://www.united.com/CMS/en-US/travel/Pages/BaggageCarry-On.aspx:
The maximum dimensions for your personal item, such as a shoulder bag, backpack, laptop bag or other small item, are 9 inches x 10 inches x 17 inches (22 cm x 25 cm x 43 cm).
If we multiply 22cm×25cm×43cm, we get 23650cm³, which is close to 24 litres. However, the 15 litre IKEA backpack above may be a couple of inches longer in width and height (looks like even the smaller one is technically about an inch longer in width than what is allowed).
Will anyone care if I get and carry on the 15L backpack, or will it be an issue?
Will it fit into the sizing apparatus? (I recall that the last time I travelled by air, which was many months ago, they had those only for the rolling-wheel carry-on bags, not for the personal items.)
Will I have to pack it in such a way as for it to fit into any sort of a sizing apparatus, for showing it off, or would that make no difference either way?