If it's smooth why do you need any treatment? If I were you, I would just leave it the way it is. Congratulations on your new bag!
I've tried apple guard before it and it worked really well. Test an area first. My bag was a light colored bag so it didn't take off any color.hi i was wondering whether anyone can help me decide on how to clean the piping on a bag? ive looked in the faqs but it mentions everything apart from how to clean piping (featured on twiggys)