All lenses are made of pure plutonite a proprietary material that offers the highest level of optical clarity available in eyewear.
													
																	Oakley si ballistic m frame 2 0. 
									
	
		
	
																	The oakley si ballistic m frame 2 0 surpasses ansi z87 1 industrial standards for high mass and high velocity impact protection. 
																	All lenses are made of pure plutonite a proprietary material that offers the highest level of optical clarity available in eyewear. 
																	Buy oakley si ballistic m frame 2 0 case in for unisex sunglasses. 
																	Discover more on oakley osi store online. 
															
													
									
	
		
	
																	The z87 1 stamp can be found near the top edge of the lens above the nose bridge hidden by the brow of the frame. 
																	The m frame 2 0 additionally meets mil spec mil prf 31013. 
																	All lenses are made of pure plutonite a proprietary material that offers the highest level of optical clarity available in eyewear. 
																	The m frame 2 0 additionally meets mil spec mil prf 31013. 
															
													
									
	
		
	
																	The oakley si ballistic m frame 2 0 surpasses ansi z87 1 industrial standards for high mass and high velocity impact protection.