SAPHIR Medaille d'Or Super Invulner Waterproof Spray is pretty effective for keeping suede and other types of leather safe from water and stains. According to the manufacturer's product description, it's a neutral spray that works on materials like smooth leather, suede, and nubuck, making it versatile for protecting your high-end leather shoes.
From what we found, people have generally good things to say about it. One example is someone who used it on their Christian Louboutin suede boots and was really happy with how it kept stains away without messing up the texture or color. That's a big plus, especially since keeping the original look and feel of the material is super important when using these kinds of sprays.
Another nice thing is that the spray doesn't leave any residue behind, so it's good for a range of fine leather items, even those with more delicate materials like silk. It seems like the spray’s gentle nature is quite consistent no matter what you use it on.
On the flip side, a few folks have mentioned that the spray has a strong smell, so it's a good idea to use it in a well-ventilated space.
Also, while lots of people are happy with its waterproofing ability, some think it needs to be reapplied more often than they expected. Interestingly, some feel it doesn’t outperform some cheaper options. One other thing to note is that the instructions are mostly in French, which means you might want to look up some guidance online.
In the end, SAPHIR Medaille d'Or Super Invulner seems to be a solid choice for treating premium leather items, but make sure to apply it in a well-aired place and maybe double-check some instructions online due to the language on the can.