Advice for steel chastity device

I’m interested in getting a new chastity device. I currently own The Curve and the CB3000 though The Curve is just too big for me and too bulky under clothes. The CB3000 fits me nicely when flaccid.

The device I’m looking for should meet the following criteria
- Comfortable for long term wear (+1 week without removal)
- Easy to clean while wearing it.
- Easily concealable under regular clothing (no need to wear very baggy pants)
- Not a full belt.
- Safe (as in, fairly inescapable without requiring a bunch of hardware shot through various pieces of flesh)
- Preferably steel
- Reasonably affordable.

Keeping this in mind, what device would you suggest, please?