Clan Robertson: History, Tartan, and Legacy Uncovered Robertson Tartan Bold Highland tradition in every thread Robertson Tartan Bold Highland tradition in every thread Robertson Tartan Bold Highland tradition in every thread Clan Robertson Tartan T shirt, Scottish Robertson Tshirt, Robertson. Product Detail: This new all over print t shirt features a relaxed fit for Men and Women. Made of 100% mesh cloth, this t shirt is durable, breathable and soft.?? 7. 05 Oz. 100% polyester. The neckband with multiple color selections cannot be customized. Double needle hemmed sleeves and bottom. Machine wash cold. The print on garment body is unable to fade.