Sierra - Black Size:ONE SIZE while the extremely elastic fabric

while the extremely elastic fabric on the inside is exceptionally breathable

8 % Elastan

Helmet integrated with patent pending SPIN (Shearing Pad inside) pads

Power_Aramid Power_Aramid is a synthetic fiber originally developed by DuPont

Gel padding and silicone grip add comfort and control

Sierra - Black Size:ONE SIZE while the extremely elastic fabricFans of vintage Revo styles rejoice! Sierra's timeless and flattering rounded P3 shape is a tribute to Revo's best selling styles from the 1995 Classic and H2O Collections. Sierra blends lightweight acetate with advanced NASA based polarized Crystal lens technology for sunglasses that not only look good, but feel even better. Sierra is a smaller fit and features a classic keyhole bridge with spring hinges to hold it comfortably in place. FEATURES &