New in box. Step out in style with these sleek black knee-high boots! 3 3/4" heel; 3/4" platform; 3" slope 15" shaft; 13 1/2" calf circumference with SOME stretch. Synthetic upper. These are a bit narrow - reviews say they run half a size shorter in front (so they’d probably fit a 9.5-10). I’m a 10-10.5 so unfortunately they don’t fit me :(