A three-point safety belt system (20) including: a tongue (100) configured to receive portions of a safety belt assembly (200); the safety belt assembly (200) comprising a shoulder belt section (202) and a lap belt section (250), the shoulder belt section including a hollow, generally flat first tube or tubular section (202), the first tube or tubular part configured to tear apart along a preferred region (203), a web guide (300); a first and second retractor (240, 260); the lap belt section (250) extending from the tongue to the corresponding retractor (260) and the shoulder belt section (202) extending from the tongue to the other retractor (240), each retractor configured to respectively retract the lap belt section and the shoulder belt section and to permit the extension or protraction of same; an inflatable air bag (400) received within the shoulder belt section and movable with the first tubular part (202) of the shoulder belt section, and inflatable by an inflator causing the air bag to extend and break the first tubular part as the air bag inflates from a stored condition to an inflated condition.