A protective cover for an electric string instrument including a generally U-shaped cradle having a flexible front member connected to a flexible back member by a flexible edge member. An upper fin-engaging portion of the edge member can be adapted to fit over the upper fin of the electric string instrument. A flexible loop can be attached to the back member and adapted to fit over a lower fin on the instrument to hold the generally U-shaped cradle to it. An upper fin-engaging portion of the edge member can fit over the upper fin of the electric string instrument. A flexible loop can be attached to the back member and adapted to fit over the instrument's lower fin to hold the generally U-shaped cradle to it. The flexible edge member can also include at least one strap button opening to fit over any strap buttons located along the peripheral edge the instrument. A pick guard can be fixed to the front side of the instrument. A back plate can be fixed to the back side of the instrument.