Spec-ops brand combat suspenders with belt loops at your sides/hip. Durable, mine are 5 years old of daily wear with more years of life in them. Comfortable, you can sit without a suspenders induced snuggy. No damage inducing metal anywhere to ruin your leather car seat. Just enough stretch but not too much in the elastic. Easy to attach and detach with hard synthetic (backpack type) clip fasteners at your sides.

https://www.opticsplanet.com/spec-ops-combat-suspenders-100650101.html

And no, you don't look like G.I. Joe when you're wearing them. In fact, twice I've had guys ask me for details about them in restaurants because they look so comfortable and capable.

I wear these with a 3-ply duty belt that are made to order in your size by Klik-belt ("Cobra" fasteners) that hold up loosely fit comfortable pants well, with plenty of support for weighty attachments (edc) or heavy pocket contents (phone). Made of 3 layers of seat belt type material. No give in the vertical direction at all regardless (like a rigid hoop), very flexible in the horizontal (loosen/tighten) direction.