wow gold and the armor are the name of the heaviest type. It offers the most physical defense and the most physical defense and the least magical defense. It is also lighter armor so can gain a light bonus if you wear all protector pieces. You can mix and match protector pieces. You can mix and match protector pieces with armor pieces but I would not recommend it. Go with one or the other. So if a skill would normally take 20 manna points to use it instead takes 18 manna points. If you missing your helmet piece then you do not get the bonus even if you have protector or World of Warcraft Gold on every other spot.

Personally, I recommend every one start off with garments until level 20. The difference you see in the physical resistance between the different armor types is negligible. The difference you see in the manna potions or downtime you have is immense, especially when you are low level and strapped for cash. That 20 manna reduction bonus from garments will make a bigger different in your warcraft gold from garments will make a bigger difference in your leveling speed from lack of downtime and cut down on your manna potions that you will need to use. Now there just something in my opinion, so you should play in the Silk Road and then think my opinion.