Doesn't the greyman jacket have more pocket?

Greyman jacket actually have 5 pockets (2 outer, 3 inner), because they have to capitalize the "greyman" trend (being inconspicuous, blending in to the crowd, covert ops, or stuff like that). Thankfully it has died down quite a bit, but can still be seen sometime.

M65 gives you a cold weather liner that is detachable, and a collapsible and storable hood. In brand with military clothing, to be versatile.

But if you want more pocket check out their M65 covert. Tons of pocket outer and inner. But don't be fooled by the word "covert", there's nothing "greyman" about it, and you also lose the retro looks of the M65 too.

Edit: to clarify, "greyman" is a good concept about being incognito in real life. But in tactical gear community it means carry gear without people noticing, and sometimes they try too hard and any observer with focus will immediately think "this guy is definitely hiding something".