Hound

A highly sophisticated form of upper-body protection utilized by the Deep Eyes squadron.  Combined with helmet and weaponry, this armor enables elite human soldiers to combat their mysterious and deadly alien foes.
 

Notes: This information comes from the cards only, but it's not like there's any big dispute over it.  The armor everyone in the military wears at some time or another.  Some soldiers, Ryan and Jane for example, choose to decorate their armor with paint or stickers.