Specially designed for young riders, the Ceo cage and included Jet bottle are a high quality option to help bring new blood into cyclingNarrow 66 mm diameter makes the special youth edition Jet easier for small hands to grip and once back in the cage it is less likely to interfere with pedalling when riding, important for those with narrow hips,Resin CEO cage is made in Italy and based on the UCI World Tour proven Custom Race Plus, just because it\'s smaller doesn\'t mean performance should be sacrificed,Jet youth bottle has 350 ml capacity, is dishwasher safe and BPA free.