This is my take on Aragonrn's grey shirt. He is wearing it in "The company of the ring" and, luckily for me, it is mentioned in the extra material of the Lord of the Rings box set I received for Christmas years ago.
I started using a commercial pattern: Butterick 4486. I then proceeded to change it almost completely. I have added a yoke. The white toile has a too-small-yoke that I then enlarged.
I have replaced the cuffs with draw strings and I have divided the sleeves in to pieces. The top part was replaced by a smocked section. The drawstrings and the neck closures are cords made on the lucet.