Clothes is not very important in Runescape, however, it does add to color and good graphics. The only important type of clothes is the “Wearable Clothes” which gives you stats that help in combat. We will talk about that type in another article.
When you log onto Runescape for the first time on an account, a menu comes up. In this menu you chose what clothes you wear, the color of your clothes, your hair style, hair color, gender, and skin color. If you have no armor on, or anything equitable, this is what you will wear.
Suppose you get tired of your style of clothing, hair, or gender (I hope not, unless it's for the Recruitment Drive quest), you can change it, for a fee.
The Makeover Mage south of Falador can change your skin color and gender for 3k.
You can change your hair style and beard color in the barber shop in Falador for 3k per change (hair and beard changed for separate fees).
Finally, your torso and leg clothes can be changed in the Var rock clothes shop for 500 gp per piece of clothes changed.
Boots can only be changed for members. After completing the Freminik Trials quest, you can change the color for around 2k.