A single ice skate used for ice skating. Shown in white and facing left on most platforms.
In the sport of figure skating, a white ice skate is traditionally worn by women, and a black ice skate worn by men. This emoji doesn't define the color to be used, but no major vendor currently displays this as black.
Ice Skate was approved as part of Unicode 5.2 in 2009 and added to Emoji 1.0 in 2015.