In this guide
How To Change Your Skin
Changing your Minecraft skin is a fun way to not only show off, but gives your character it's own personal touch. It's very easy to change your skin. There are many websites where they have premade skins such as Skindex or you can make your own.
Changing Your Skin Through the Minecraft Launcher
1 Open up the Minecraft Launcher
2 Head to the Skins area.
3 From there, you will see a "New Skin" button.
4 Then you can select the Player Model from either Wide to Slim and, if you have a cape you can select that there as well.
5 You can upload your skin from where you have downloaded it from & you are all set!