1. Feature :(1)Wide headpiece on silicone strap provides stability and comfort(2)Built on Sub frame technology for durability and strength(3) Size and color can be customized as per your demand.(4)PC frame,Website: , tempered glass(5)Great comfort and low volume(6)Easy –adjusting mask buckle(7)Silicone or PVC skirt & strap2. Material:LENS:PCskirt and strap: Silicone or PVC3. Packing:1) Standard packing: poly bag for each piece.2) Other packing with different prices for choosing, such as PP box, Polyester bag, PVC clamshell.3) 50pcs/ctn in poly bag,4) 24pcs/ctn in PP box or in polyester5)12pcs/ctn in PVC clamshell