This model provides a soft, monolithic frame, as well as curved lenses made from cellulose propionate for a wider viewing angle. There is a forked strap. Glasses reliably protect against the negative effects of ultraviolet radiation and fogging, and therefore are an excellent option for training.\nFeatures:\n\nLenses: polycarbonate;\nSealant / Frame: Silicone / Polycarbonate;\nStrap: Silicone (forked strap).