These boots are one of my favorites and I had to build an outfit around them. The good news is they are super easy to acquire. You can get them from the medium Great Barrow set.
Shoulders: Cotton Shoulder Guards, dyed Black (T3 Tailor)
Chest: Footman’s Armour (T6 Tailor)
Legs: Westernesse Protector’s Leggings, dyed Black (T5 Tailor)
Hands: Barrow-Scout Gauntlets, dyed Umber (Barterer: Classic Vendor (Skirmish Camp)
Feet: Barrow-Scout Boots, dyed Umber (Barterer: Classic Vendor (Skirmish Camp)
Back: Plain Hooded Cloak, dyed Black (All Outfitters)