Aerohead Shield Replacement Donic Powerstrap: foot-wrapping Velcro closure designed

Powerstrap: foot-wrapping Velcro closure designed for an enveloping fit

Specifically designed for 10 & 11 speed chains

which virtually eliminates drips and spills

- Up-grade from standard push-in variety

Trouble-free and simple maintenance is provided by the proven

Aerohead Shield Replacement Donic Powerstrap: foot-wrapping Velcro closure designedThe replacement lens for your Aerohead Helmet featuring premium Optics by ZEISS and a choice of either grey (for sunny mixed conditions) or clear for low light racing and training. The magnetically fastened ZEISS optical shield provides wraparound eye protection with exceptional optical clarity, and it's easy to flip up or remove with one hand when appropriate. Always keep a spare.