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GRITT
4.8 ★★★★★ 82 Google reviews · Kickboxing gym in Islip, New York
Fitness center offering kickboxing classes designed to challenge the mind, body, and spirit.
Plan your first class
- Free trial or intro class most gyms welcome new members with a free trial or intro class — check their site or give them a call to book your first session
- Beginner-friendly all fitness levels welcome, including total beginners — no experience needed, and you get in shape by training, not before
- Cardio kickboxing classes high-energy cardio kickboxing on the bags and pads — a fun, sweaty workout built for fitness and weight loss, at your own pace
- Kids & teen classes kids and teen kickboxing classes — built around confidence, focus, and fun
- Today see hours ·
- Website & schedule grittcollective.com — book classes and see the live schedule
- Phone +1 631-527-8787
Hours
| Monday | 5:30 am–8 pm |
| Tuesday | 5:30 am–8 pm |
| Wednesday | 5:30 am–8 pm |
| Thursday | 5:30 am–8 pm |
| Friday | 5:30 am–12 pm |
| Saturday | 7–11:30 am |
| Sunday | 8:30–10 am |
The classes they run
“Absolutely loving my kickboxing classes at GRITT It’s honestly the perfect hour of “me time” A chance to reset, relieve stress and feel stronger every single class.”
Other martial arts here
What members say
“From day one, Coach Sarai made me feel welcomed and she encouraged me along the way keeping in mind I have very rarely worked out.”
“GRITT helped me reach my weight loss goals, gain strength, and build so much self-confidence along the way.”
“The coaches/trainers are top notch, super motivating, and make every workout worth it.”
“Even when I couldn’t do sit ups or lift more than 2lbs she and the other coaches provided encouragement and gave me confidence to keep going and soon I was seeing progress.”
“Her instructions were precise yet accessible, her praise supportive and genuine, and her corrections kind but anchored in high expectations.”
From the reviews
I just wanted to share how GRITT has truly been a blessing and God sent in my journey, especially living with an autoimmune disease. I’ve actually known Sarai since my kickboxing days, so when I transitioned into Pilates, I felt completely comfortable continuing my journey with her.
Sarai’s the kind of trainer who genuinely cares about people. She has the knowledge and the experience to help you reach your goals, and she’s always striving to bring out the best in everyone she works with.
⭐️⭐️⭐️⭐️⭐️ | "An Experience That Exceeded Every Expectation" I recently had my first private reformer Pilates session at GRITT in Islip, NY and I’m still thinking about how exceptional it was. As someone entirely new to reformer Pilates, I walked in with the typical beginner’s blend of curiosity and uncertainty.
Gritt is the place to go! It is not a quick fix but with the coaching from all the trainers and the kickboxing/strength training classes you will reach your goal in no time! The trainers are incredible! They will do what is best for you and only you.
New to kickboxing? Start at GRITT
GRITT comes up as a beginner-friendly gym, going by their listing and members’ reviews. If you've never thrown a punch or a kick, that's exactly who a good beginners class is for. A few things worth knowing before your first week. First, you don't need to be fit or coordinated to start — you get in shape by training, not before it, and coaches scale every drill to you. Second, you won't be thrown into hard sparring — reputable gyms build the basics (stance, footwork, and punches and kicks on pads and bags) first, and any contact eases in gradually under a coach's control. Third, all fitness levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out. Most gyms are happy to let you watch or try a class first, so reach out before you commit.
Your first kickboxing class at GRITT
Nervous about walking into a kickboxing gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling the basics — stance, footwork, and punches and kicks on pads or a heavy bag — not hard sparring. Go at your own pace and rest whenever you need to; no one will bat an eye. What to wear: comfortable athletic clothes you can move and sweat in, and supportive trainers. What to bring: water, and hand wraps and gloves if you have them — many gyms lend loaner gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves and wraps (and shin guards once you start sparring). Sparring is optional and eases in gradually, once your basics are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.
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🥊 Free trial / intro class — check their site