Biltwell Moto 2 GogglesThe clean look of the Biltwell Moto 2 Goggles abandons the neon frills all too common in today's goggles. This does not mean modern technology must fall by the wayside, since Biltwell's impact resistant polycarbonate lens not only resists fog, but provides an optically clear, large view port for wide peripheral vision.Features: Impact-resistant clear anti-fog polycarbonate lens Injection-molded plastic frame Large eye port for excellent peripheral visibility Accommodates most prescription glasses Two-stage foam with fleece outer layer provides venting and comfort Lens is removable for cleaning and replacement Woven heavy-duty strap for superior stretch and durability Double D-ring The Double D-ring closure is THE tried-and-true motorcycle helmet retention system. Consisting of two "D" shaped rings, the rider laces the opposing strap through the closure to secure the helmet. It is strong, simple, reliable and infinitely adjustable. Some helmets use alternative closure methods, but the Double D-ring remains the gold standard for these reasons. s for precise adjustment