The CAO OSA Sol takes its name from the Olancho San Agustín growing region of Honduras, the source of the line's proprietary OSA wrapper leaf. This premium Honduran wrapper — also used in several other high-profile General Cigar releases — is paired with a Connecticut Broadleaf binder and a Honduran-Nicaraguan filler blend. The vitola names use a Lot number format (Lot 54, Lot 58) referencing the ring gauge of each size.