A Think Tank high quality Pro Speed Belt. It say's it's medium but having tried it I think it's really probably small. I have 34 wasit and it is too tight. The small is from waist 27-32in and I'm sure that's it. The padded belt is used to attach camera and lens cases around your waist as an alternative to shoulder pack. Very well made.
This has never been used,. It still has its brochure style card tags attached