特点：可以自由调节长短的防滑(或普通)高弹力松紧带,可适应任何头型配戴
Specialty: adjustable non-slip (or common high elastic strap; can be adapted to any size of head-wear
采用人体光学设计，间隙透气，其视野开阔并可阻挡强风，雪粒，雾气及各种强光。
Use optics design of the human body, have good exhaust ventilation, widely vision and can avoid strong winds, snow grains, mirage and all kind of strong light
证书：CE认证
Certificate: CE certificate
TEL：86-020-81787981FAX：86-020-81787708
此风镜的镜片有