Personalized Westie Pro Players Toddler Long Sleeve T-Shirt. Westie Terrier trio - dog art by children's book Illustrator, Kim Niles of KiniArt studios. © KiniArt/Kim Niles. All Rights Reserved. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.