Down-filled coats aplenty everywhere, but need knee-length!

[CookieTramp]

I have been looking and looking for a down-filled hooded coat, which are seemingly everywhere, but nowhere seems to have a knee-length one. I wear a lot of tunic-dresses, and with shorter coats they always poke out the bottom and look rubbish! What does everyone else do about this problem? I like the Aigle Cuckmere but am pretty sure it will reach mid-thigh (although they never state the length so it is impossible to be sure!).

I thought it was worth a try to ask on here and see if anyone knew of one. Need black or dark blue, and not too puffa-ish. I am 5"11' so only really proper knee-length will do. I have looked at the

Lands End Commuter Coat.

5'7" and it is well below my knees.
Tailored, with an adjustable elastic inside at the waist, but no belt.
Rain baffle outside the zip and wind baffle inside.
Waterproof.
Removable padded hood.

Pretty sure it's down. But, even if it's not, it's the warmest coat I've ever owned. Warmer, even, than my Canadian down coat.

It is down (80/20). The fabric is 100% polyester.