100 Series Alpha Aluminum: WSD Fit for women: Women’s Specific Design considers your bike as a complete system, from frame geometry to gearing to the many touchpoints that determine the fit and feel of your ride. WSD Geometry: The better the fit, the greater your comfort, stability, power, and control. Seeglass coating: Visibility is the key to safety in low-light conditions, so our WSD R&D team set out to make the bike highly visible from any angle. Seeglass, a Trek-exclusive coating enhanced with crushed glass. Giving greater reflectivity 360 degree visibility. Comes with accessories shown: ...