The present invention relates to a protective trouser-type sports garment, which is made of an elastic fabric both in the longitudinal direction and in the transverse direction, and comprises respective longitudinal reinforcements both in the front part of the garment (6) intended to act on the quadriceps muscles and in the rear part (4) of said garment, intended to act on the hamstring muscles, extending on both front and rear faces from the waist (2) and on both legs to the area slightly above the knee of the user, both reinforcements (4, 6) having considerable elasticity in the longitudinal direction and another elasticity in the transverse direction.
