You’re both in and outside of me; You guide me but don’t ride me; I have a tongue but I cannot speak. What am I?

Question

I have a tongue but does not speak.
I’ll protect you outdoors.
I smell but have no nose.
And make you sweat from your pores.
I am not allowed in some houses.
It is a sin.
And yes I have an Identical twin.

What am I?

Answer 1

Tongue of a shoe.