My avi has these dark stripes at the inside of the legs...

[Kiki Woodells]

it looks ugly and i mostly walk around with dark long pants...

Why is that and is it fixable?

[eyeye Afterthought]

Without a photograph it is hard to see what is your problem.

Use the little tree icon to add a photo to your post. (Options<Edit - see right hand top corner of your post)

[Lindal Kidd]

The insides of the thighs on the avatar mesh do not posess very much detail, and almost all skins look bad in this area.