Abstract: Four wheel in-line skate, having a half-boot type inner footwear portion and an outer rigid portion made up of a first tip front portion and a second rear portion surrounding ankle and heel. Within the first and second portions are housed the inner footwear portion. The first front portion and the second rear portion of the skate are fixedly coupled each other by a flexible coupling of the lamina or spring kind, provided in correspondence of the underlying portion of the same in such a way to allow their movement and the automatic return to an alignment position. The front and rear portions are provided with vertical elements, perpendicularly provided with respect to the plane of the skate, provided at least partially one within the other, and within each one of couples of vertical elements wheels are provided, connected with the same by pins.