This is the jacket of the current issue German Bundeswehr rain suit. Very simple and sensible hardshell overgarment to wear when it's wet and nasty.
All in all a very simple "GTX" jacket with a couple of handy features for use in the field:
Made of Gore-Tex or Sympatex, this membrane "breathes"; it lets moisture out, keeping the wearer dry. Microscopic holes in the membrane let water vapor pass through, but are too small for liquid water to do the same (although in the case of Sympatex the mechanism is somewhat different). However, no rain suit breathes as well as regular non-rainwear. For this reason, they're still best reserved for wet and nasty weather or blocking the wind in light activity.
On the very top there is (or has been) a DWR coating with a job of blocking most of the water before it even touches the membrane.
First the German size, then these converted to comparable easy size, followed by the user's recommended chest circumference. As these are meant to be worn over everything else, they have sized accordingly - by picking your own size you should have plenty of room for extra clothing.
The length sizes are all the same and are good for average height males, but this leaves some room to play; if you're over 180 cm (5' 11") tall, you can get more sleeve length by sizing one notch up.
In used but perfectly serviceable condition. The DWR coating on the top of the fabric may have faded with time, but it can be revived with standard wet blocking sprays.
Andrew K.
Jochem B.
William L.