Footie's practical hidden 2-way zipper with an inner placket to protect your baby's skin opens from neck to foot. It features mitten cuffs to prevent scratching and an anti-slip feature under the feet. The back of the foot has a soft elastic to ensure that baby's foot stays secure. No flame retardant chemicals are used. The fabric is the softest TENCEL™modal which is not only lightweight, breathable and hypoallergenic, its production process is sustainable, helping to minimize environmental impact.