I LOVE the color of the black, grey and pink ones! This shoe is AMAZINGLY comfortable, but without all the extra bulk of other toning shoes like the Sketchers Shape Ups. These are GREAT for walking around. The insole is cushy yet supportive. The upper mesh is comfy and breathable, but still keeps your feet covered. The slightly pointy, low-profile of this shoe looks great sticking out of baggy sweat pants. The toning effectiveness of this shoe is negligible. I haven't seen any changes in my butt or legs, despite being skinny. Unless you walk many miles a day, or up or down hills, you won't see any significant changes in your butt or legs I think, by just using these shoes alone.