Sirrus X 4.0 Shoe covers Top of hand is constructed

Top of hand is constructed from stretchable mesh for increased breathability

Put it together

you can take all that tire volume to the road with no penalty for a next level silky ride

and they're shaped and structured to ensure that their contents won't ever come bouncing out

the nearest competition

Sirrus X 4.0 Shoe covers Top of hand is constructedOffering an unprecedented combination of comfort, efficiency, and nimble handling, the Sirrus X excels on pavement, dirt, and any terrain in between. SMOOTH; COMFORTABLE, AND EFFICIENT: Sirrus X provides the smoothest ride in its class. With bigger, confidence inspiring tires, a slightly more upright riding position, and a super intuitive one by drivetrain. RIDER FIRST ENGINEERED: Like all Specialized performance bikes, the geometry of each frame is