Reindeer Romper Costume - Toddler This baby reindeer costume includes a fleece romper and headpiece with ears & antlers. This baby reindeer costume comes in baby sizes Infant, Toddler. The super-soft fleece of this cuddly baby reindeer costume keeps your little one cozy and warm. The baby reindeer costume's romper has built-in footies with nonskid soles for added safety. This baby reindeer costume is very breathable yet it will keep little ears warm.