All spins in this group involve spinning on one leg while the other leg is elevated and extended in any position that's not a 90-degree angle. Layback spins, in which a skater holds one leg at an angle behind them while arching their upper body to look upwards, are one of the most popular types of upright spins. Some skaters do a "catch foot" variation, where they grab the blade of their free leg during the spin.
Other popular upright spins require even more flexibility. An "I" spin requires the skater to lift their free leg all the way up at 180 degrees so that their body appears to form a capital "I" shape. You also might see a Biellmann spin, in which the skater grabs their free leg, holds it behind and above their head, and arches their upper body, as shown here.
