A Time Trialing Thread

Iam still looking for a good helmet. I have allready purchased the Kask Mistral in medium and it’s good for me, but i can change it for a large. I think about to do that after i see more and more bigger helmets.
The M is for 55-58 and the L is for 58-62. My head is 57. Do you think a L will fits and is it better? (more shoulders into the helmet)

the Kask Bambino Pro ridden by Tom Pidcock and Adam Yates. To be honest, it’s not the model of helmet that matters here, it’s the sheer size of the thing. Neither of the Brits are large riders – Yates is especially diminutive, as expected for a GC contender – but the size of these helmets looked almost wider than their shoulders. The aero performance of this is quite clear. The larger the helmet, the more air can be smoothly displaced around the less-than-optimally-aero shoulders, and theoretically reduce the overall drag.