I use a GIVI E-450 (45 Litre), and my Wife uses a GIVI E-30 (30 Litre) Top Case on Our PCXs....we take a Lota' extended Trips with quite a bit of Gear...They work Great.....
"Doppler Weather Units".......
Ridin' and Socializin' the Southeastern USA on a 2014 Honda FORZA 300 Scooter...45+ years of Riding averaging 30,000 miles per year...!!!
The Givi wind shields are probably the easiest performace enhancement you can fit as it stops your torso acting as a wind breaker, helping you get up to speed
quicker.
By the way, how do you get your wife to ride a scooter? Mine won't even consider it!