Forging Greatness

About Us

Founded in 2010, we’re a functional fitness gym in Center Moriches, NY. We offer CrossFit classes led by experienced trainers, as well as private personal training sessions for beginners and advanced athletes.

Our coaches are here to support, guide, and encourage you on your health journeys. Our team includes certified personal trainers, CrossFit-certified coaches, and weightlifting, gymnastics, and nutrition experts.

Getting Started

We offer functional fitness workouts for everyone — no matter your age, ability, or experience level. To maximize your experience, we ask all beginners to complete our instructional Foundations classes.

CrossFit Classes

Group classes consisting of functional movements performed at high intensity.

Open Gym

Optional unstructured activity during designated class times for experienced athletes.

Personal Training

One-on-one sessions to help you meet your specific health and fitness goals.


In-house nutrition advice to help you look, feel, and perform your best.

Teen Athletics

For girls and boys, ages 13 to 16, to build strength and confidence while moving properly.

Bootcamp Classes

High-intensity, low-impact group classes consisting of bodyweight exercises and calisthenics.

Heart Rate Monitors

To take your workouts to the next level, we offer MyZone Heart Rate Monitors, driving accountability, positivity, and community. The wearable monitors come with an app, allowing you to track and receive real-time feedback.

What Our Members Are Saying

“I’ve lived a life of chronic pain with chronic illnesses too long to list…entering my 4th week of CrossFit, I feel like a new human. I feel so much better, so much healthier.” -Jenny

“I’ve gained a stronger body and a belief that I can do things I thought I could not do previously. I have gained close friends and support from people I can call family.” -Deb

“CrossFit Kryptonite has done a lot for me…it has allowed me to take back my health and be the best version of myself I can be for my wife and two kids.” -J.

Get in Touch


15 Frowein Road, Building F 
Center Moriches, NY 11934

Contact Us

Phone : 631-909-7377