US Special Forces Vietnam MACV-SOG CISO Indigenous Rucksack used by SF SOG Recon Teams…These canvas packs were produced by CISO (Counter Insurgency Support Office on Okinawa) and were sterile copies of the NVA rucksacks…Shown here are variants including an unissued tan canvas rucksack and a spray painted green rucksack used by a SOG One-Zero Recon Team leader.
(US Special Forces Vietnam MACV-SOG CISO Indigenous Rucksack)