I use a Jetflow screen for hot weather and off-road stuff. As you'd expect it's more windy and noisy than the big screen (mine's a GSA). More bug mess too, but does keep you cooler and allows you to move around a lot more when off road, and it's less likely to get damaged.
Edit: sorry, just seen this is in the WC section... Not obvious on Tapatalk.
- Outsider