This suit is a 6/4 and it's WARM...I mean TOASTY WARM! I bought this last winter and only wore it 4 times. The only reason I'm selling it is because I lost too much weight over the summer and it's way too big....however I will be purchasing the same suit, as it's the warmest one I've ever owned. This suit retails for $439.00...I will let it go for $150!!!!! The color is mostly black with some greyish outlines....simple and clean looking. I am always in the Belmar area so free delivery is an option. If you want pics let me know.