3M Germany SecureFit 400 safety spectacles SF405SGAF-BLA. Choose the 3M SecureFit 400 series safety spectacles if you want extra comfort and a slim design. The safety spectacles weigh just 19 g and feature 3M temple pressure distribution technology, which allows the double-padded temple connection points to adapt naturally to the size of your head, ensuring a secure and comfortable fit. The soft and adjustable nose bridge enables an even better fit and reduces slippage of the safety spectacles during head movements. The wide and flexible temples with an over-the-ear fit offer solid side protection and can be easily combined with earmuffs. The wraparound shape gives the user a wide field of vision. The rimless polycarbonate lenses are available with anti-fog and anti-scratch coating for longer durability and better vision.