1st off - always wear a PDF. Yes I wear an Extrasport PDF over that harness, My wife has a Hobie Harness and she wears the Harness over her PDF. It's all a matter of preference.

The Pro-mesh is around $130.00 I guess. I can't remember.

They have a Dealer Locator that may help you out.

Magic Marine is not hard to find. The Hobie Harness is a good one too. I like full for back support - but in light or flukie air I will wear a butt bucket / Half harness, if there is a lot of in and out.