SAHN Helmets is about riding. Not racing. The SAHN Classic is a helmet for those who may or may not define themselves as cyclists, but have a desire to look better both on and off the bicycle. Size: S/M Covers both small and medium size ranges, 54 - 57cm or 21 - 22.5", approximately fits hat sizes 6-5/8 - 7. If someone fits other bike helmets normally, they should fit this too. Weight: 430g Partly from the thinness of the durable ABS shell & EPS liner (and internal channels that you don't see but are inside the EPS liner, saving weight and increasing protection by dispersing impact forces), the end result is a lighter helmet than comparable urban oriented helmets like the Bern Watts (~450g) and the Giro Surface (~500g).g
