Fit & Design Full rim, shield lens design inspired by the original Eyeshade Manufactuered with BiO-Matter(TM) frame material made from bio-materials having at least 56% bio-based carbon content (representing ratio of castor oil to fossil sources) Removable side shields are designed to block glare and keep faces protected Latch mechanism lets you clip your glasses to your shirt, allowing you to safely stow your eyewear and move seamlessly through your day Comes with an eyewear leash that snaps on to the end of your frames to help keep them securely in place Unobtainium(R) nosepads and earsocks provide no-slip grip when wet to help increase retention Wide, high bridge fit Technology Prizm(TM) Lens Technology to enhance color, contrast and detail for an optimized experience Impact Protection: Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions