GB4010 XSG Description Description Plain & Bi-Focal out of direct vision options avaliable Flame resistant foam padding Seal keeps out dust and airborne particles Interchangeable temples and strap Bi-focal version comes in strengths 1.5, 2 & 2.5 Related products SB7080SDT I-FORCE – INDOOR/OUTDOOR LENS B52 PLUS EP18 Lens Cleaning Station GB6410 V2G-XP