1, Material: lenses 2.5mm polycarbonate, frame TR90; 2, Diopter: 3, prism degree: vertical and horizontal ≤ 0.125 △, left and right ≤ 0.18 △;

1、Structure:consisting of shell, cushioning layer, padding, wearing device (strap, chin rest, buckle and helmet top suspension system); 2、Material: shell made of engineering plastics, cushioning layer made of foam and soft energy-absorbing materials, mask made of PC materials and anti-fog treatment;

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