How to make an object so that nothing exits the lines?

[oliviaj89763634]

I suppose someone some time ago has answered this question, but i just can't find the one i need.

I am a begginner in Illustrator and im desperate.

Basically im designing a hoodie and i need the logos and text on the sleeve, but i want to make it so that when i move the text, it dissapears kind of when it exits the lines of the hoodie. So how can i make the hoodie outlines be the prominent ones so, that nothing goes beyond those lines? Reference photo attached. 

[John Mensinger]

You would have to make a clipping mask that follows the outline of the sleeve.

https://helpx.adobe.com/illustrator/using/clipping-masks.html

[Steve Werner]

This article explains how to make a clipping mask:

https://creativepro.com/masking-artwork-in-illustrator/

[pixxxelschubser]

Or use the "Draw Inside" mode, which you can find at the bottom of the Tool Bar.

[John Mensinger]

Or use the "Draw Inside" mode

My first thought too, but I got the impression the hoodie was a raster image.

[pixxxelschubser]

In both cases you will need a real path of the Hoodie"outline". This could be the clipping path of the image, for example.