The welt surface is designed for stronger cleaning of heavier scuffs and stains, the nylon bristles for gentler cleaning of small scuffs on fine suede, the arched half circle helps you clean rounded surfaces more (think toe boxes!), and the thin, protruding brush can access harder-to-reach crevices or grooves.
Promising review: “This oil really surprised me. My attitude with oils was always, an oil is an oil. But there is something with this oil combination that makes a big difference in my hair. Even though it’s an oil it makes my hair feel so hydrated, I can’t explain it. It just works. I buy 3 bottles at a time now.” —Candice K.