The Castelli Free Ar 4.1 is a very advanced version of the Free Aero competition jersey and is not only suitable for competitions, but more an allround jersey. Further on it is very aerodynamic, compared to a conventional jersey 12 watts are saved at a speed of 40 km/h.
made of very aerodynamic and highly breathable Velocity functional material, Nervato sleeves
full-length YKK-zip with underlap
collar with adhesive silicone
Cuffs made of mesh material
three-part back pocket + additional zipper-locked bag
Castelli clothing is usually quite small