It is an exclusive material, result of specific technological researches and specifically manufactured for Bonacina1889. KRILON® is an extrusion of GH-AVV thermoplastic material, which has two nylon threads running in the core of the KRILON® thread. These nylon threads have multiple functions: they lend constant elasticity, morphologic stability and comfortable seating. Being non-toxic and washable, KRILON® is suitable both for INdoor and OUTdoor use. KRILON® is a Bonacina1889 patented brand.