The Sorpasso RoS Women’s Tight from Castelli is for riding in the widest range of conditions. It features all the same performance benefits as the Sorpasso RoS Women’s Bibtight just without the inconvenience of bib straps.The tight features the ultra-stretchy, warm and water repellent Nano Flex 3G fabric. The fabric uses the third generation of Castelli’s nanotechnology fabric treatment that adds a high level of water repellency without affecting breathability, stretch or warmth. The fabric also offers a compressive fit that moves with you for all-day comfort.On the thighs and rear of the tights there are panels of Nano Flex Xtra Dry fabric to provide a bit more wind protection and warmth, as well as protection from any road spray.It’s not only about the fabrics. Anatomical patterning gives a bend at the knee and the hip. YKK® Camlock® zippers at the ankles make for easy on and lock and a secure closure, and reflective inserts on the lower leg help you stay seen.The tight uses Castelli’s women’s specific Progetto X2 Donna seat pad, ideal for long hours in the saddle. This pad features two isolated layers that work in tandem with your body and saddle to eliminate friction while still offering substantial cushioning where it’s needed most. Key Features: Nano Flex 3g fabric for the ideal mix of warmth, stretchy compression, softness and water repellency,Nano Flex Xtra Dry fabric panel on upper front and thigh for extra warmth,Anatomic cut to hips and knee,Reflective inserts for maximum visibility from behind,YKK® Camlock® zippers at ankles,Progetto X2 seamless Donna seat pad for long hours in the saddle,2° – 12°C / 32° – 54°F,Weight: 284g (Small).