I used netti x-large and the large met is perfect

My head is the same size...I went for the large and at first it felt a bit bit but after using the adjustment available it fits perfect and on the cold Scottish mornings I can get a thin skull cap under and open up the straps a bit.

go the m

Go with the medium. I measured up at 58 and got the large and its pretty big lid, pretty sure I'd fit the medium.

I chose the Met Inferno medium. Like you I was right between medium and large. Both fit fine but the medium was definitely less bulky.

Mine was manufactured Jun 2010 but, of course, this just shows the Inferno is a current model.

The one i checked was May 2009.

This helmet does meet Australian standards - they sell the exactly the same product in bike stores in South Australia...only difference is the price!!

Since they come from Europe direct, they do not get issued with an Australian standards sticker, but when I looked into it last year, they are exactly the same helmet as you would get in any retail store down under. A very small % of the imports are taken aside for testing, if they pass, all are stickered as complying.

From an insurance perspective if that is what you are worried about, I'm unsure if they would take you to task on that point. However, from a safety and cost perspective, you can buy helmets from Wiggle significantly cheaper than any store in Oz, thereby getting a top of the range lid for the price of a mid-range helmet in a store.

I ordered and received the all-black model.

The blue and red are a pretty good colour with grey through it.

As the manufacture date on mine is Jun 2010, I would say yes.

Don't know if it is valid or not, but it is CE stamped only. No AS sticker, so might not be good in events.

I have purchased a 59-61 size, I am 59 cm and it only just fits at maximum adjustment, if the smaller sizes are similar, I would
order a size bigger than your head.

My head-size is 57.5-58.0 approx. I chose the larger one and am totally happy with the sizing. Seems just right.