1.Topmost Lace:
It is the worlds only mask with a cross-shaped lace at the top, which
can prevent slide of mask in violent motion. The lace can adjust size of
the mask and keep stability of mask.
2.Super-wide-angle lens:
The 280°wide-angle lens meets all optic factors, through which you have
a broad and clear visual field and can aim at target and take defense
actions in the game.