BBB overshoe Winter Speed BWS-14 black The Speed Flex offers optimum protection in wet weather. It consists of revolutionary Water Flex Material: Inside microfleece and exterior polyurethane, these ensure the highest water density, flexibility and durability. All internal seams are sealed waterproof. The ergonomic two-panel design ensures short seams and a perfect fit. Reflective piping increase the visibility of the cyclist in the dark. For a long life it has Kevlar reinforcements in the toe and heel. With its 38mm wide Velcro he even allows use with inline skates.