I've only got a couple of AIWB holsters for my .38 Special-sized S&W J-frames:
Blade-Tech.
https://blade-tech.com/products/klip...=5870550810652
https://www.amazon.com/Blade-Tech-Kl...s%2C145&sr=8-7
No extra pads or wings. It just works well for me.
Safariland.
https://www.amazon.com/Safariland-27...8-2&th=1&psc=1
https://safariland.com/collections/i...-holster-10990
No extra pads or wings. Personally, I'm not liking the belt "clip". I've been trying other clips and, so far, haven't found something "just right". I'll try a simple snap belt loop next. Maybe that'll be better, yet the supplied J-loop works ok.
My other revolver holsters are "owb" type.