TexasCHLforum.com

IIRC, the 5.11 Operator belt is identical to the Instructor, except that the Operator is 1.75" wide and the Instructor is 1.5" wide. Both are high-test nylon webbing with steel buckles. A 1.75" belt won't fit any but specialized belt loops, including those on the standard 5.11 tactical pants, so that may be a consideration.

The 5.11 web belts--most web belts--are quite serviceable and will last a long time. If they get sweaty, they can also be rinsed and line dried. The only thing I'll mention is that they aren't very thick, unless you get one with an internal Kydex stiffener. If you use an IWB holster with standard Kydex clips (the kind that overlap the outside of the belt) there's less for the clip to hold onto. That's not an issue with "C" type clips or, of course, full leather loops. Decent leather belts are about twice as expensive, but have the thickness that works reliably with any kind of IWB holster clip.

There's a place for both, though. With Kydex OWB holsters, I always use a nylon web belt, either 5.11 or Blackhawk. But I have leather belts from The Beltman and Comp-Tac, and use those most of the time when carrying with an IWB holster.