Called the "V-Bag" the bag combines a bulletproof vest with a bulletproof backpack.
"We've shot at it with a 9mm hang gun, up to 44 calibre guns and it resists... Our goal has been to minimise the risk to the child," manufacturer Miguel Caballero told CNN's Rafael Romo.
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Callabero said the company began to produce the V-Bags after the Newtown shooting, when parents started making inquiries about child-sized body armour.
The bulletproof backpacks are expected to sell for between $US 200 ($A 196) and $US 300 in Colombia, but if they is enough demand, Callabero says he may export them to the United States.
