I got a istorm helmet since 95% of my riding is off-pavement. It's ventilated and very lightweight compared to other helmets. It's also DOT approved. Light weight and ventilation were what I needed for my type of riding. I have kept an older duelsport full-face helmet for my occassional fowray in cold weather riding but that haven't actually used it in over a year.
It's inexpensive as well. https://www.amazon.com/1Storm-Motocr...43168691&psc=1
Me wearing it