With the replacement lenses for the Durden, you're well-prepared for any weather. The goggle features a new attachment system for the strap, where the strap is secured on the outside of the frame for optimal integration with the helmet. The ventilation foam is laminated to the inside of the frame, making it particularly durable. It's a relatively large goggle with a 1.3-millimeter thick lens that has an oleophobic and hydrophobic coating. At the bottom of the lens, there is a hook that makes inserting it into the frame and changing the lens easier.