Difficulties with wearing a device? discussion

Any advice would be appreciated! Currently, I’ve got my BB belt positioned in a way that feels both snug and secure (minus the rod). Right now, what worries me most is seeing the waistband peek out. To keep it hidden for now, I’m going with XL underwear pulled up high over my stomach. The downside is they tend to slide down after some time has passed. I’d prefer not having to constantly check and adjust them. Cheers!