Nûby Flip It Cup 420ml features a soft silicone straw which is gentle to your child's tender gums and emerging teeth. The soft silicone straw is covered by an easy touse flip top cap. This uniquely designed feature protects the straw from contamination when not in use. The flip cap keeps the straw sanitary and clean. The leak resistant cup dispenses a variety of liquids, ranging in consistency from fruit juices, to milk and water. Great for travel and short trips.