Here's what you need to do for this suede model: you need to waterproof it with a suede waterproofing spray (we also sell them in our shoe repair section). This protects from stains and water and will optimize the longevity and good holding of the leather over time. Then a shot of Sublim Suede to revive the colours, with a crepe brush if possible.
And don't forget to use shoe tree when you're not wearing them, essential for maintaining the shape of your shoes.
We have everything we need in our cobbling department at reasonable prices, so don't hesitate.