Sirrus X 3.0 ST XC Skis closed uppers to protect against

closed uppers to protect against debris

shovel or other long item

The self-inflating foam measures 2 inches (5 cm) and features Thermarest's StrataCore construction

Uppers: Ultra-fine ripstop mesh

Sirrus X 3.0 ST XC Skis closed uppers to protect againstOffering 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