Approved by Red Nose for safer sleep, the Wondercool Eyelet Jersey Zippy is made from super soft mesh fabric with X-Temp Technology to maximise airflow and help regulate baby's body temperature The centre zip makes nappy change a breeze, while the protective zip cover is gentle on baby's skin. Short arms and legs are perfect for warmer weather Cute and comfortable as both baby clothing and baby pyjamas from newborn babies through to toddlers Main: Cotton / Nylon / Elastane (Exclusive of Trims)