The shape, construction, and materials used in nylon string guitars vary, but typically they have a modern classical guitar shape based on the designs of 19th-century Spanish guitar maker, Antonio Torres Jurado.

Generally smaller than a steel string acoustic guitar, the nylon string guitar is more often favoured by beginners as it is easier to hold and the strings are more comfortable to play. More experienced players who play classical, Spanish or flamenco music will choose a nylon string guitar because of the specific sound qualities it produces.

Classical guitar strings were once made of gut and nowadays are made of polymers such as nylon, with a fine silver wire wrap around the bass strings.

It is an acoustic, wooden guitar with six nylon guitar strings that relies on its hollow body and sound hole to produce and project the vibrations of its strings when plucked or strummed.

The nylon string or classical guitar (sometimes known as the Spanish Guitar) is a member of the acoustic guitar family.