Introducing the Duxbak Pakbak. Granted it was patented in 1926, so not very new, but we only just found the patent label nestled under the poachers pouch back pocket. A kind of envelope type bellows expandable affair, similar to the later integrated backpack found on the US Army WWII Mountain Jacket.
The rest of the jacket features other innovative details such as the wide split double hip pockets, scalloped fly front, and double ply outer sleeves. Always nice to find the unexpected tucked away, hidden from view, until now…
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