Personalized Defeat Arthritis Youth Long Sleeve T-Shirt. Arthritis Blue Awareness Butterfly Youth Long Sleeve T-Shirt - Heather has support slogan that says Defeat Arthritis. The pain of arthritis is debilitating for many who suffer from it. Won't you show your support with this lovely and unique awareness design? youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)