Personalized Mito Research Train Toddler Hoodie. Mito Research Green Ribbon Awareness Train Toddler Hoodie - Black has room to personalize and makes a unique way to show support for someone with a mitochondrial disease. The Toddler Pullover Fleece Hoodie keeps little ones cozy and comfortable through all their adventures. Made with soft fleece and a smooth jersey-lined hood, it’s perfect for layering on chilly days. Ribbed cuffs and waistband help hold in warmth while side seam pockets add a touch of practicality for busy toddlers on the go.