"Clan Gregor or MacGregor Crest over Rob Roy Tartan" Sticker for Sale Rob Roy Macgregor Tartan Sherpa Hoodie with Family Crest Rob Roy Macgregor Tartan Classic Cap with Family Crest MacGregor Tartan Cotton T Shirt with Family Crest. 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.