Jefferson Child (Toddler) Keep it classy and cool with the Jefferson! Slip-on style for easy on and off. EVA upper, lining, and sole are comfortable and lightweight so that you can run, jump, and play. Perforations control temperature and let feet breathe. Antimicrobial and odor resistant so feet don't get smelly. Vegan! Product measurements were taken using size 9 Toddler, width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.