The original heated reformer workout^®

More than pilates. A performance method built to strengthen your body, sharpen your mind, and transform you from the inside out.

Get 6 classes for $72.See the method.

New member special

Six classes.
Twenty-one days.

$72

Our way of saying welcome. Available once, to new local members only. Buy before you book.

Credits: 6 classes
Expires: 21 days from date of purchase. Non-extendable.
Studios: Redeemable at your studio of purchase.
Eligibility: New members only. One per person.

Where will you flow?

Credits are redeemable at the studio you buy from. Pick yours to continue.

River North102 W Chicago Ave, Chicago, IL 60654Buy 6 classes for $72.Wicker Park1330 N Milwaukee Ave, Chicago, IL 60622Buy 6 classes for $72.

New members only, one per person. Credits expire 21 days from purchase and are redeemable at the studio you buy from. See our Privacy Policy and Terms.

One method.
Three principles.

Every class draws on muscle specificity training — different stimulus, different result. Nothing is left to chance. You show up. Principle rotation does the rest. Rotation is not posted. Each principle matters. The method is a system, not a menu.

Fortify

Muscular endurance

Slow, controlled, deliberately flowing movement. Resilience that carries off the reformer and into life.

A member on the reformer in a long, controlled stretch, one leg extended overhead, holding the position under low light.

Sculpt

Muscular strength

Extended holds, targeted pulses, increased load. Time under tension, applied with intent.

A member holding a loaded plank on the reformer, dumbbell rowed to the ribs, arms and back under visible tension.

Burn

Muscular power + cardio

Hybrid intensity with cardio bursts. Full-spectrum challenge, built on the other two.

A member deep in a loaded squat on the reformer, dumbbells at the shoulders, mid-effort and sweating.

Signature

ONYX45

The flagship. 45 minutes cycling Fortify, Sculpt and Burn on a monthly rotation. Full-body, full-method.

ONYX90

The extended signature. More time, more reps, more results. Double the duration.

Targeted

CORE45

Engineered around core strength, stability and control. The method applied to the midline.

UPPER45

Arms, shoulders, chest and back. Method-driven sculpting from the waist up.

LOWER45

Glutes, legs and lower-body power. Method-driven sculpting from the waist down.

Restorative

RECHARGE45

Lower-intensity movement to restore, lengthen and prepare the body for what is next.

Run & Recharge

Seasonal. A two-mile run from the studio, then RECHARGE45. Fridays, both studios.

An empty ONYX studio floor, reformers in formation under the magenta house lights before class.

Reformer pilates is better heated.

Infrared penetrates deep into muscle tissue rather than warming the air around you. Circulation rises. Warm-up accelerates. Oxygen reaches working muscles faster.

The result is deeper range of motion, greater activation, faster recovery, and a sweat a conventional room cannot replicate.

90°FRoom temperature

45Minutes

2Chicago studios