y cling to face, the softly exquisite material void to bring any unsuitable feeling to face.
松緊帶 silicone strap材質：單面絨毛帶
特點：可以自由調節長短的防滑(或普通)高彈力松緊帶,可適應任何頭型配戴
Specialty: adjustable non-slip (or common high elastic strap; can be adapted to any size of head-wear
采用人體光學設計，間隙透氣，其視野開闊并可阻擋強風，雪粒，霧氣及各種強光。
Use optics design of the human body, have good exhaust ventilation, widely vision and can avoid strong winds, snow grains,