Given the absence of laws protecting employees from this type of arbitrary discrimination, it is important to determine whether the framework of grievance arbitration offers any protection to workers who are singled out because of their size. To address this matter, we reviewed all arbitration cases reported in the Bureau of National Affairs’ Labor Arbitration Reporter between 1945 and 2006 in which weight played a prominent role in the arbitrator’s determination. We identified 25 weightrelated cases. In general, these cases fell into three groups. In the first group, the employers dismissed or refused to reinstate or recall employees to their former job based solely or partly on the belief that excessive weight or obesity interfered with the employees’ ability to perform their jobs successfully or safely. In the second group of cases, the employers dismissed overweight employees because of their failure to satisfy a company appearance or grooming requirement. The third group of cases involved employees who tried to obtain relief from harassment based on their weight or, alternatively, claimed that harassment at the workplace should mitigate discipline workers received for responding to abuse with their own acts of hostility.