East River Pilates · S 1st

East River Pilates on S 1st is a Pilates studio in Williamsburg, New York. Classes split between reformer and mat Pilates, with an emphasis on core, glutes and arms, balance and functional movement. Most are open to all levels, while an advanced reformer class is kept for experienced practitioners, and a reformer class welcomes prenatal and postnatal clients. A cardio jumpboard class and a mat class that pairs interval training with Pilates add a more dynamic pace. Grippy socks are required for reformer classes. Most classes run in the morning, with a good share on weekends.

• Open early: Classes before 8 on 5 days a week.