Are you sure that sole is "Stealth C4...
Are you sure that sole is "Stealth C4 rubber"? 'cause on official site(http://fiveten.com/products/footwear-detail/5970-spitfire-wild-blue-yonder) says sole is "Stealth S1"
It is indeed and S1 sole, we'll get the information fixed asap.
i believe the black soles are s1, the white sole is phantom.