Inside the PSD file you have 2 leather Photoshop styles:
1 --- embossed leather
2 --- debossed leather (stamped leather)

The embossed leather logo and the stamped leather logo styles are editable so you can customize the effect really easily.

How To Use The Leather Mockup?
--- Download and open the PSD file in Photoshop.
--- Double click on the thumbnail of the smart object called “ADD YOUR LOGO INSIDE”.
--- Add your logo inside the smart object and save (Control-S) to see the result.
--- If you want you can replace the leather texture but you have to choose a smooth leather texture.
--- You can also change the color of the leather using the Hue/Saturation adjustment layer that is included in the PSD file. Change the hue and/or the saturation of the Reds channel.
--- For the preview I used vector badges. This leather mockup works great with Rubber Stamps also. So, you can create your own stamp logo using this Photoshop action.