The way the sleeves and back were designed makes it so IF you could get both your arms down the sleeves, you wouldn't be able to move them without tearing either the armhole seams or the fabric across the back.  And this was a large size which is normally a bit too big for me but I wanted my trench to be loose (I sometimes have to wear my shoulder purse under my coat in heavy rain).  Sent it back.  Fabric is nice, etc, just not wearable because of the way it was made in Thailand or wherever where, obviously women are much smaller boned.