Personalized Friends For All Seasons Toddler Long Sleeve T-Shirt. Winter, Summer, Spring, or Fall, these best friends have it all. Friends For All Seasons Toddler Long Sleeve Tee - White, perfect for fans of all ages who love "Dog and Mouse" by Michelle Nelson-Schmidt. 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.