For the past six months, I have worn a Wilderness Instructor's belt as my everyday belt.
It's just fine.
I wear slacks and button-up shirts at work mostly.
It goes with those, jeans, shorts, whatever.
By thickness, do you mean width of the belt, or sectional thickness?
They come in two different widths....1.5 inches and 1.75 inches, I think.
The thickness is very workable.
I got mine when I chanced to make a trip to Phoenix, AZ, and got it right there in the Dillon Precision storefront.
I did learn this.......At the time, my waist was around a 36. But, I needed the size 38 belt.....here's why. The belt is designed for you to wear a holster, mag holders, etc, on it.
So, whatever your waist size is, get the belt that's the next size up to give you room to put stuff on the belt when you choose to do so.
About the only time I wear a holster is when I teach handgun courses.
hillbilly