Seat belt assembly

The present invention relates to a safety belt system (12) for a seat (10). The seat (10) has a vertical extension in a vertical direction (V) and a transversal centre plane (P T ) which, when a person occupies the seat, extends vertically between the occupant's left and right hand sides. The safety belt system (12) comprises a belt (18), a first guide arrangement (20) and a second guide arrangement (22). The safety belt system (12) is configured such that when the safety belt system (12) is mounted with a seat (10), the first and second guide arrangements (20, 22) are located on the same side of the transversal centre plane (P T ) and the first guide arrangement (20) is located above the second guide arrangement (22).