Since the Defense Act of 1954 was implemented, it has been illegal for civilians to own or wear Irish uniforms without proper authorization. And since the Irish government does not surplus their uniforms, it is almost impossible to get a hold of authentic Irish DPM.
 
But The Surplus Front has managed to land a large batch of Irish DPM.
 
First developed in 1999, Irish DPM (Disruptive Pattern Material) has been used by its armed forces ever since. 
 
Available are Irish DPM UBACS (Under Body Armor Combat Shirt). These would be worn under your flak vest/body armor so that you still have breathability when wearing your uniform. 
The sleeves are made of the same material as the field shirts, while the body section is lightweight, giving you a perfect combination of breathability and durability. 
 
Two variants are available:
Option 1 is the shirt with DPM sleeves with tan body
Option 2 is DPM for both the sleeves and body sections. 
 
Only size Medium available!
 
Overall, these items are in good condition, but since they are used surplus, they may have minor imperfections such as small holes, tears, stains, and/or markings.