1600N inox foil mask. Certified by the FIE. This mask has been made in our workshops for decades. On each phase of the manufacturing process, our technicians are eager to check the quality of their work so taght you can indulge to your passion safely. This model is compulsory for international contests. Its also known all over the world for its longevity and reliability. French Manufacturing. Size SMALL = Prieur size 2 - for children Size MEDIUM = Prieur size 3 - for average adults Size LARGE = Prieur size 4 - for larger heads Size X-LARGE = Prieur size 5 - largest size