Welcome to
Where precision meets power.
Build your strongest self — guided by expert instructors who know when to push and when to protect.
TRY OUR INTRO OFFER: 2 Lagree Classes for $40
FORM BY TWO (FX2) is Princeton’s home for high-intensity Lagree classes and personalized Reformer Pilates sessions — led by certified instructors who know how to challenge and support you safely.
Whether you’re here to build strength, improve form, or restore balance, you’ll find your formula at FX2.
Our instructors bring the precision. Our members bring the energy. Together, we build strength that lasts — body, mind, and spirit.
Get ready to shake, sweat and smile with us.
Most workouts make you choose: push your limits or protect your body.
You deserve a fitness experience that does both — challenging enough to transform your strength, mindful enough to protect your form.
That’s exactly what we’ve built at FORM BY TWO.
FORM BY TWO is the only studio in the Princeton area that brings both modalities together.
You can choose what your body needs most!
Lagree Classes:
High-intensity, low-impact, spring-resistance workouts that build strength, endurance, and stability.
Performed in small group classes (max 10 people) for individual attention.
Expect to sweat, shake, and leave feeling stronger — inside and out.
Private Reformer Pilates Sessions:
One-on-one or duet sessions focused on precision, form, and alignment.
Ideal for injury prevention, recovery, or improving mobility and control.
Led by certified instructors who tailor every session to your goals.
Both methods are low-impact, but the intensity is up to you.
Choose your focus — or blend both to create your ideal fitness formula.
Experience the challenge that defines FX2
START NOW: 2 Lagree Classes for $40
Our Lagree classes are the perfect place to start!
High Energy. Low Impact. Always led by Expert Instructors.
Offer valid for new Lagree class clients only.
Lagree is not Pilates.
But both are powered by form and control.
While both methods use spring-based resistance, they have different goals:
Lagree
Builds muscular endurance and strength through slow, high-intensity movement.
Reformer Pilates
Focuses on rehabilitation, mobility, and precise alignment.
Think of Lagree as your CHALLENGE, and Reformer Pilates as your RECOVERY — each taught by certified instructors who specialize in their method and know how to help you move smarter, safer, and stronger.
Buy One Get One $40
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Start Now
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Buy One Get One $40 | Start Now |
Your First Visit
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FORM BY TWO is located inside the courtyard of Princeton Shopping Center.
We recommend parking in front of Chopt (on the Walgreens side) & walking along the sidewalk until you reach the opposite side of the courtyard. Turn left & we are the 3rd door down, next to Mathnasium.
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Grip socks are required for all classes & sessions for safety and sanitary purposes. We have them for purchase at the studio.
Don't forget to bring a water bottle to stay hydrated during your workout.
For Lagree classes, we recommend form-fitting clothing to enable you to stay secure on the Megaformer and for our instructors to accurately provide direction & corrections.
For Pilates sessions, we recommend comfortable, form-fitting clothing that allows for ease of movement and flexibility.
Consider wearing fitted leggings, shorts, or capris along with a breathable tank top or fitted t-shirt. Avoid excessively baggy clothing that may get in the way or restrict movement.
Also, please be considerate of others when attending class:
Do not wear perfume during classes
Apply deodorant prior to attending class
Refrain from chewing gum in class
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Please arrive 10-15 minutes early. Your instructor will walk you through the Mega Pro and set you up for success.
Please note that for your safety, new members that are not present 10 minutes before class, will not be admitted & rebooked into another class.
For all future classes, arrive at least 5 minutes before class to put your things away, slip on your grip socks and find your station.
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Absolutely! Our instructors will coach your form and pace every step of the way. Classes are small (10 max), so you’ll always get personal attention.
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When you first arrive, please check-in at the front desk tablet.
You can store your items in the provided cubbies at the front of the studio & put your grip socks on.
Introduce yourself to the instructor (once the previous class is finished), let them know it’s your first class and inform them of any injuries or pre-existing conditions that may impact your class participation.
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Instructors will provide all class participants with a cleaning cloth to wipe down all surfaces. Please make sure to drop the cloth in the towel bin when you leave!
Feel free to ask our instructors or staff any questions you may have after your session.
And…don’t forget to book your next class!
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No, FORM BY TWO does not have shower facilities. However, we do provide select amenities in our restroom (e.g. deodorant, dry shampoo, small towels, etc.).
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We offer private Reformer Pilates sessions - perfect for rehabilitation, flexibility or form improvement. They are separate from group Lagree classes.
“I was looking for a truly challenging workout that was still gentle on my joints to get in shape for my wedding, and FORM BY TWO was the answer—the slow, focused movements were absolutely amazing and completely transformed my body, forcing my wedding dress to be taken in several times in a matter of months!”
— Lisa C.,
“I felt an immediate sense of community at FORM BY TWO, where I'm not just a client but a human being who is celebrated and held, which was a huge confidence builder. The instructors provide fantastic, supportive adjustments and genuinely care, creating an energy that pushes you to realize ‘I can do hard things,’ transforming my mind and body from the inside out.”
— Lindsay W.
