This 2012 Viva Skully from Castelli is designed to be worn under your cycling helmet while riding. The material is thin, but will provide warmth during cold rides. Stay safe while riding, always wear a helmet and use this great team product to stam warm!

Technical Specifications:

1. Thermoflex fabric
2. Raw cut edge lies flat and doesn't bunch under helmet
3. Team argyle accents

If you would like to speak with us directly about this product, please call us 303 484 9361 during regular business hours: 8am to 4pm mountain standard time. If you are not able to reach us, please email us at: sales@slipstreamsports.com and we'll get back to you right away!