The new SKB-61 has a re-designed interior to fit all Gibson and Epiphone SG s except 12 string and the ESP LTD Viper series guitars except 12 strings. The exterior of the SKB-61 SG Style Guitar case incorporates superior structural and design features such as a molecular weight polyethylene shell and rigid EPS interior foam to cradle the guitar securely and absorb shock molded-in bumper design to provide maximum protection for the valance system and full-length neck support.