Louis Garneau Edge Mountain Bicycle Helmet. Great minds think alike, so as you push it to the limit out on the trails then make sure you've got a Louis Garneau Edge mountain bike Bicycle Helmet strapped to your noggin. Its U Bar technology with Inner Nerves internal frame system delivers both incredible strength and light weight. Further, there are 22 colossal vents providing amazing airflow without compromising Bicycle Helmet integrity. There's also Sealed Airdry padding to soak up excess moisture while the SpiderLock SL retention system guarantees a super stable fit over the roughest terrain.