This helmet lives up to its name, being very lightweight and unobtrusive. There is not much padding but that just means not much for sweat to absorb into. Pads are not really necessary as the helmet is so lightweight you will hardly even notice it is there. I put it on and forget about it, which is exactly what a helmet should do.
One feature I like is the sunglass holder on the front, it is a good place that is out of the way and won't fall off, even when taking the helmet on and off before or after a ride.
I needed a new road helmet and had previously purchased the oakley mountain helmet a couple of years ago. I decided to give the ARO3 a chance because I loved the BOA on my mountain helmet and purchased this one. This helmet is lite and so easy to adjust with the BOA. I would recommend this helmet to anyone. It runs a little small my mountain helmet is a medium and with the road helmet I purchased a large.
I wear a pair of prescription Oakley sunglasses while cycling. The straps on several other brands of quality helmets rub against the earpieces of my glasses, causing them to ride up or just be uncomfortable. Not a problem with this helmet. Light and comfortable; kinda forget you're wearing it.