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Help sizing Climbing Helmets

I’m looking for a climbing helmet, but the largest is see is a M/L. I wear a 7 5/8 hat, so I’m thinking I need an XL helmet. What do you think? I don’t want to order one and it not fit.

2 Replies

@davidfletcherphoto at least in the product description for bD's men's Half Dome, instructions are present for measuring your head and relating that to the proper size helmet.  Probably for other models as well.

I am not an REI employee.  i'll bet they have today off.

Superusers do not speak on behalf of REI and may have received
one or more gifts or other benefits from the co-op.

@davidfletcherphoto thanks for reaching out! Have you measured the circumference of your head? A quick calculation, using your hat size, looks like your head may measure just over 60cm and just under 24". If that's about right, here are a few helmet options that should fit:

Hope this helps!

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