Super RoubaixAcaqua Zero: Seat panel. Super Roubaix Carbon: Knees and calves. Super Roubaix:Quads and bib straps. Constructed on a curve to provide a natural ergonomic it and specifically engineered using Giordana's Women's Contour Fit System to fit the female form in the riding position. Unique bib strap system connects the straps in the front of the rider rather than over the shoulders for the most comfortable women's fit. Ultimate Winter materials, SuperRoubaix and SuperRoubaixCarbon, are utilized for the majority of the tights. SuperRoubaixAcqua Zero treatment makes the seat panels water resistant to protect from spray in wet conditions. These fabrics' brushed inner pile is soft, comfortable, and extremely effective at retaining heat.