High Noon makes holsters for the 97B as well.
http://www.highnoonholsters.com/Product_Line/_Topless/_topless.html
I have one, but I don't really care for it. I'm not a fan of that type of holster due to the way it feels after a while.
I'm certainly more aware of the size and weight of the 97B and take greater pains to protect the gun, not only from coming out (which is really a small factor with a large gun for me), but rather to the "printing" or possibility of the gun being seen by others.
I will say the relatively inexpensive Dan Hume JIT I have for my Maks and CZ82s, are extremely easy to wear. This model sits the gun higher than some, and for me has great retention.
But what really makes slide type holsters easy to carry is the way the belt goes through the back of the holsters. The belt loops hold the holster, not the holster pressed against the belt and body to hold the gun and holster in place.
I have a wonderful FIST holster for a CZ75B. Like the High Noon for my 97B it's well-made, excellent retention, but after 4 hours it's hurting my side, regardless of belt. The way the belt loops through the holster causes the holster to become part of the tension. That tension is often expressed by the holster pressing like the devil in your side. I don't like that.
Here's the CZ75B FIST holster on the left, the Makarov Don Hume JIT on the right. The belt is a Wilderness 5-stitch w/insert.
I've drawn arrows to point out something. On the right (Mak) the belt passes through the belt loops without any tension on the holster or gun.
But notice the bulge on the FIST holster. The belt is actually pressing hard against the holster.
See how the belt passes through the right holster. This holster carries the gun -- the belt loops only hold it on.
But on the holster on the left, the belt and loop positions cause tension, and can become very uncomfortable. Notice how the gun in the FIST holster is really carried inside the belt line, while on the Mak holster, the gun is carried "Outside" the belt line.
To carry the Mak or a straight-line belt loop holster, I only need tighten my belt to hold the weight of the gun. But with the Fist and High Noon holsters, to tighten to the same level causes the holster to press uncomfortably against me.
I have a no name old 1970's slide that I've adapted for my CZ97B. The belt loops through back of the holster merely to hold the holster to the belt. Your body doesn't feel the tension because there is none.
Now I either carry my handguns in a simple slide type holster or shoulder holster without any problems or pain.
Hope this makes sense.
Steve