James C.wrote a review of Giro Vanquish MIPS Helmet on October 13, 2018
I purchased this helmet to use with sunglasses and it works very well in this manner. I had not used a helmet with a shield before and thought it looked funky. One ride, I decided to put the shield on and what a revelation - the shield works great, a marked improvement over sunglasses for 3 reasons:
1. Visibility is much better, especially looking up at the road from the drops.
2. When wearing a cap under the helmet to cover my ears, there is no need to keep pushing sunglasses back as the normal ear perch is covered.
3. The optics of the shield are excellent, magnifying every detail in the texture of the road.
Aside from the shield, this helmet is very comfortable and includes MIPS, a great plus as most aero road helmets do not.
I can not measure the aero but it is very quiet, usually an indicator of less drag causing air turbulence.
I have a Giro Valegro helmet I use in the very hot Texas summer but I use this helmet for everything else and love it.