Clan MacKay Ancient Tartan Crest Badge Aloha Hawaiian Shirt Tropical O MacArthur of Milton Ancient Tartan Hawaiian Shirt Celticprime.com Clan MacKinnon Hunting Modern Tartan Polo Shirt Royal Coat Of Arms S MacColl (MacCall) Ancient Tartan Hawaiian Shirt Celticprime.com. Featuring boxy fit with short sleeves and notch lapel collar, this lightweight 4 way stretch shirt is a perfectchoice for a casual yet stylish uniform in warmer climates. 7. 23 Oz. Fabric: 95% polyester, 5% spandex. Features four way stretch fabric and comfort fit. Short sleeves, notch lapel collar, self fabric sleeve cuff detail. Machine wash, tumble dry low.