The specialized sl race winter bib tight is made with warp knitted stretch back brushed fleece which is lighter than super roubaix but it offers good warmth and freedom of movement soft and comfortable bib tight with front protection freedom of movement for your long rides specialized sl race winter bib tight features made of light elastic soft fabric in 3 layers with a breathable waterproof membrane the braces and the back of the legs are made of warm and comfortable lombard