This is a cool exercise, but there's a broken assumption. Or an assumption of no outwear I missed: > Where is there enough support to prevent items swinging around uncomfortably? He answered this with a box basically around the thighs, but I'd also add the torso and maybe even the upper arms. A personal bugbear of mine is jackets without internal breast pockets. When you have one on each side of a jacket that isn't u…
That said, I agree with you that internal pockets in jackets are great (though obviously it can be harder to access the contents once you have taken the jacket off).
I do also have a jacket with a pocket on the upper sleeve. It’s tiny and weird and basically useless and I’m not really sure what it’s for (credit card? Tiny MP3 player? If it were a skiing jacket then I might guess it was for a lift pass but it’s definitely not a skiing jacket and it’s a weird manoeuvre to try to get your upper arm to a reader at waist height) though sometimes I will put my keys there because their lumpy shape makes them uncomfortable in pockets closer to the skin and I rarely need to access them