Oakley SI Performance Strap Kit for Ballistic M Frame 2.0 & 3.0 Oakley SI M Frame 3.0 it provides an NRR of

it provides an NRR of 28

and economical lens replacement system

the temple stems were thinned out to provide a good seal for over-ear systems

D3 Rating for Droplet and Splash Protection

Extended flow opening provides longer flow rate than conventional bottles

Oakley SI Performance Strap Kit for Ballistic M Frame 2.0 & 3.0 Oakley SI M Frame 3.0 it provides an NRR ofStrap Kit fits all Oakley M Frame 2. 0 & 3. 0 only. Oakley Standard Issue items are available for US sales only. We will ship only to United States destinations and US military bases. Oakley Standard Issue items on orders shipping outside the US will be removed before the order is processed.