Windstopper X-Free 300 bib-tights (100% polyester) – warm, breathable, windproof and water-resistant, for perfect balance between breathability and protection from cold and bad weather. Incredibly stretchy, they feature an aerodynamic fit and facilitate freedom of movement. Back insert and shoulder straps in soft and warm thermofleece with central moisture-wicking mesh; white thermofleece inserts at knee and waist; ergonomic knee cut; ankle zip; reflective piping on the calf to ensure visibility on the road; GIT chamois.