Clother Bonuses are things that make the clothing unique. it depends on the color tier of the clothing level. The more bonus/tier highness you have, the more it benefits you.
There are 5 different colors: gray, green, blue, purple, and yellow. You can identify the tier of the equipment easily - Take off your extra armor and look at the ones you can put on. The name of the item is in that tier's color's background.
Gray (Tier 1) has a bonus of 20 for hats, shoes, outfits and 10 for wands.
Green (Tier 2) has a bonus of 40 for hats, shoes, outfits, and 20 for wands.
Blue (Tier 3) has a bonus of 60 for hats, shoes, outfits, and 30 for wands (not including the epic wands which do 40 and epic hats, that have a bonus of 40.)
Purple (Tier 4) has a bonus of 80 for hats,shoes,outfits, and 40 for wands.
*Yellow (Tier 5) has a bonus of 100 for hats, shoes, and outfits. There are no tier 5 wands.
*There are only 3 different types of Tier 5 items: The Trialmaster Circlet, the Trialmaster Garb, and the Trialmaster Boots. The first two, (Trialmaster Circlet and Trialmaster Garb) were given to the first 1,000 people to play the game. They are currently unobtainable (however, may be found in chests). The Trialmaster Boots are so far speculated to be obtainable, but they are very rare (considered legendary (yellow) and requires a Membership to use.