Vespa Granturismo Helmet Vespa - Which Should I Choose And Why?

Vespa - which should I choose and why? - vespa granturismo helmet

I live in Ho Chi Minh City and have a ride of 10 kilometers. The streets are chaotic, full of bicycles and other rough spots. I am a beginner bike. If less than 200cc. I am attracted by the GTS125, LX125 Granturismo 125, but not enough to make an informed decision. Any help much appreciated.