I recommend Real Techniques sponges.

I recommend my Real Techniques sponge, which I am using again today, washing it thoroughly, and drying it!

It adheres to the skin perfectly, unlike other sponges.

It is great to apply a thin layer with a spatula and pat it in, and it also makes your skin makeup look very smooth if you apply it with a brush and pat it in.

On days when I need to put a little extra effort into my look, just wet it slightly, squeeze out the excess water, and apply it; it works perfectly on my skin no matter what foundation I use!

The only downside is that it's a bit expensive, but you'll definitely get your money's worth! Buy it!