'Until nylon was developed, many parachutes were made out of this natural material'
silk
GIMME AN S!: Until nylon was developed, many parachutes were made out of this natural material
Until nylon was developed, many parachutes were made out of this natural material
Until nylon was developed, many parachutes were made out of this natural material
GIMME AN "S"!
silk
GIMME AN "S"!