DOUBLE BREATHABLE DESIGN: The goggles frame lateral has ventilation systems and high-density black breathable foam inside help draw warm air out of the tactical mask interior STRONG PROTECTION : The goggles can strongly prevent from Shooting hit 150 m/SEC within 10M.Making sure you are safety when you playing CS Game. Manufacturered by BOROLA. HIGH QUALITY LENS: Our lens is made of PC which has strong physical properties. It can not only prevent the cold wind on the eye irritationbut also prevent UV rays from burning on the eyes. EASY TO INSTALL & DISMANTLE: Our mask with slot and our goggles with slot hole which is easy to install and dismantle. ADJUSTABLE STRAP: Fit most head type3cm width Black high elastic cord Wear comfortable and easily adjustment buckles.