The Sirio ( S Body aka base S)- The most popular body within the Isaia line is also the fullest in structure. The S Body is the base in the collection from which all others are derives. Defined by its classic Neapolitan natural shoulder. The Gregory (g-body)- Similar to the S body yet defined by a softer shoulder, this design carries a shorter body, and a mildly tapered sleeve.
Answered on 5/19/2011 12:00:00 AM by Customer Care 1 from Sierra Trading Post