Assos winter ll bib tights our warmest full length bibtight winterll is the result of assos improving upon the former airblock bibtight winterll features repositioned airblock 851 panels for improved muscle protection and better freedom of movement laminated inner panels offer higher compression and increase comfort on cold days while the back and lower legs feature rx fabric for comfort fit and warmth 65 polyamide 19 polyester 12 elastane 3 polyurethane 1 lyocell aepd assos