Personalized Curious Chihuahua Youth Long Sleeve T-Shirt. Chihuahua dog breed art by Contemporary PUP Artist, KiniArt (Kim Niles). © KiniArt™ - All Rights Reserved. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)