Caught this helmet on sale at Sierra and ordered without hesitation. The helmet was too tight in the upper back corners so I reached out to Schuberth for advice. They recommended a kit that reduced the 10mm pads to 7–perfect! Also in the kit was a 15 mm back pad. I replaced my 10 mm factory back pad and my helmet is now perfect for my head! Schuberth, like Sierra, is very strong in customer support and satisfaction.