According to one embodiment, a slider of a head includes a trailing step portion which protrudes from a facing surface of the slider, is situated on the downstream side of a negative-pressure cavity with respect to an airflow, and has a top surface, a trailing pad which protrudes from the top surface, and an adjustment recess which is formed in the top surface on the upstream side of the trailing pad with respect to the airflow and is shallower than the negative-pressure cavity. The adjustment recess defines a first step portion, which extends across a first direction and hangs from the top surface toward a bottom of the adjustment recess, and a second step portion, which extends across the first direction, is spaced in the first direction from the first step portion, and rises from the bottom of the adjustment recess toward the top surface.