No, this model includes the CF sleeve. Actually so does the 3135, so it must be any model that ends in 35. It does add some bulk, but it's so slim without it, that it isn't that bad with it. Also, I'm thinking of modifying it so it's smaller and can fit in the "naked" Vaja wallet that I want. It's still expensive for a case, but I like it and it's 20% off.