I've been searching for a matching ski helmet both in shops and on Amazon. The sizes of many manufacturers with respect to the head circumference in centimeters should be treated with caution. Why this is I do not know. Not so with Alpina. The head circumference alone is certainly not an ideal point of reference. Only Alpina has created the model "Grap" a helmet, the ideal is also located in the head width and is adjustable. Especially adult men with large heads, I can therefore highly recommend this model. I myself have a head circumference of 61 cm. The helmet Alpina "Grap" with indication of size of 61 cm to 64 cm fits perfectly and I can wear it with a cold protection hood. Anyone who has a head circumference of 64 cm, however, could get even without refrigeration guard a problem. I have chosen the helmet in "Black matt". Looks very stylish and does not bear too much on. In addition I have bought the Alpina ski goggles "Quattroflex Turbo GT" on Amazon and the glasses fit perfectly. Ideal for people with long eye relief. so thats it. In 2 days I'm already back on the slopes.