be carefulA22A23 is Lenses are not helmets{It’s lenses, not helmets}Transparent lensFor more comfortable and safe wearing. The inner lining of the helmet is
composed of a sponge structure. The sponge is very soft, so there will be an error
of 0.2-0.5CM, which is normal and can be ignored, and can be worn normally.
Please forgive me
How to measure head circumference: Use a soft ruler to draw a circle around the forehead (above the brow bone) and the prominent point on the back of the head. Hair is also counted. You can calculate your head size and choose the right helmet size for your needs.
S:52.5-54cm M54-56cm , L:57-58CM, XL:59-60CM, XXL:61-62cm.
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