The SS.UNO jersey features 31 parts: 4 textiles, 15 patterns, 12 components. NEW Type.vX121 custom made ASSOS fabric, specifically developed for the SS.UNO, insulates, protects and maintains your body temperature. The idea of using spandex textile for the arm panels was first introduced by ASSOS in the early 90's with the SS.UNO 's grandfather, the mod.Uni. On the SS.UNO we have further perfected the fit, by pattern design and type of textile used. Full front zipper for better ventilation, three rear pockets, plus zippered storage safety pocket. Also features PAT (Permanent Antibacterial Treatment and has UV 50+ sun protection. Fit is racingCut; a design evolution of the pattern used by the SS.Uno. Anatomical fit, ergonomically pre-shaped, tailored to fit your body in the cycling position. Clicks on, then follows your movements without restriction.