Stormhide Battlegear Mail Set
Level: Requires Level 78
Armor Level: Rare
Armor Type: Mail
Binding: Binds on equip
Crafted by: Leatherworking
This doesn’t look like a mail set to me, but it is 
The patterns are purchasable from Braeg Stoutbeard in Dalaran for 3 Heavy Borean Leather each. It was a started PVP set for level 80s. This set is nice because it has 8 pieces, meaning you won’t have to play mix and match come 4.3.