[Kevin Finnerty]

Both kinds fit. The ones with the black on the outside are only vinyl on the outside, and are calfskin or doeskin on the inside (the original titanium ones are calfskin inside and the replacement ones pictured from BTL may be doeskin on the inside). The all light-colored ones are all doeskin.

My first Wilson, I changed out the pads and put in the ones that Durham referred to, and they were great. Very thick and light, but not quite as soft, or seemingly as light as the ones that come on the titanium. But it's a hard distinction to make; they're both fantastic, and I would use no other.