Okay so I am now within close enough to my goal weight to safely predict my sizing and have bit the bullet and just gone for it. I know this designer and fit and am confident in my choices...
http://www.hsn.com/fashion/dg2.....63_xp.aspx I got the Espresso color and Neon Red

http://www.hsn.com/fashion/dg2.....49_xp.aspx I got them in Red and Yellow

http://www.hsn.com/fashion/dg2.....29_xp.aspx I got them in Royal Blue