Compacts by 33% in volume
Width by length: 21.5 x 15 cm -> 16 x 15 cm
Really happy with it. I thought the helmet could be squeezed a little more than it does but it's not an issue - saves already space and fits into most bags and rucksacks. Most importantly it feels safe (sincerely hope I'll not have to test that) but also wears very comfortable.
Be Safe Be Seen with a touch of added style. Purchased the Oakland orange, as it is very bright and can be seen for miles. The added rear light is much better in the flesh, than the adverts. Helmet fits very well on my head and in my rucksack with my laptop, when not in use.
It fits well. I like the light on the back of the helmet. It looks very nice. It is light weight and comfortable.I am quite satisfied with this helmet!