Pro performance productextra breathability lightness and style and of course a focus on cutting wind resistance are all key features of the photon frac34 sleeve aero jersey made of lightweight and breathable artico fabric the photon jersey features side inserts in carbon fibre and is antibacterial and odour resistant anti slip elasticated bands at the cuffs and waist enhance the aerodynamic fit of the jersey keeping it in place while you ride the 34 length sleev