Review on POC Downhill Mountain Medium Large Moonstone by Justin Olson

I bought this helmet for unicycling (EUC), not DH mountain biking. It appears that DH rated bike helmets come closest to the crash scenarios you are likely to encounter at EUC, meaning they are optimized for low average speed impact and concussion prevention through absorption/deformation rather than high speed. Impact and skull fracture/penetration protection like a motorcycle helmet or many low speed impacts like a skateboard helmet. I chose this helmet because it's the _only_ full downhill helmet I could find that uses a full styrofoam liner instead of styrofoam or a hybrid styrofoam liner which should theoretically allow it to have multiple To withstand impacts instead of styrofoam which will be destroyed. in tune with the design. The fit and finish is near perfect - superb finish consistent with other POC materials. I can't say how it will behave in a crash and I don't want to test it, but the workmanship, the materials and the general "patency" things inspire confidence. The helmet is very comfortable and fits well. on my huge head, although the cheek pads are very tight and crush my cheeks too much. We need to figure out how to fix this. I have previously tried the old version of this helmet, the Coron (no air, no SPIN). It didn't fit at all and was exactly the same size. I also have a POC Receptor+ Backcountry MIPS helmet in the same size that fits perfectly. The helmet isn't exactly light, but it's not heavy when you wear it either. The view is excellent. The ear cups are comfortable and ensure the helmet has minimal impact on your hearing. Ventilation is good when you're picking up speed, but the helmet gets hot when you're standing still. I think that's to be expected from a high protection full face helmet.