All of the Booties (for the eFrontier and V3 versions) use the same geometry, UV mapping and textures, which means the textures are interchangeable between all of them. They have just been manually fitted to each character to ensure that the textures don't distort from one character to another.

It's been a while since I released one, but there are booties for Aiko and SP3 in the works at present. We've been swamped with other work as well, but they will be coming!  There are also plans to make them compatible with male figures as well.

Anyway, all of the Booties are catsuits with feet. The V3 bootie looks quite a bit different because Arien did some very clever texturing to make it look "un-catsuit-like". Wait until you see what she did for Aiko's bootie! ;-)