Q36.5 Ultra Big Logo 19: absolute efficiency between foot and shoe They are developed to create an extremely efficient interface between foot and footwear, eliminating wrinkles and enhancing the feeling of control and comfort while pedaling. Their technical knit offers a precise fit and a unique sensation that makes a difference from the first use. Material: 62% Polyamide 6.6, 23% Elastane, 15% Polypropylene Knit technology: Technical construction designed to create an efficient interface between foot and shoe without wrinkles Breathability: Technical knit with a blend of synthetic fibers Fit