HomeMassachusettsNatick › FitFusion Athlete (FKA Powerhouse Kickboxing & Fitness) @ Cross Garage Gym

FitFusion Athlete (FKA Powerhouse Kickboxing & Fitness) @ Cross Garage Gym

5 ★★★★★ 19 Google reviews · Kickboxing gym in Natick, Massachusetts

Kickboxing gym Kids & teens Cardio kickboxing Private lessons

Plan your first class

  • 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
  • Private lessons one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
  • Today see hours ·
  • Website & schedule fitfusionathlete.simplybook.me — book classes and see the live schedule
  • Phone +1 617-510-0835

Hours

Monday 9 am–5 pm
Tuesday 9 am–5 pm
Wednesday 9 am–5 pm
Thursday 9 am–5 pm
Friday 9 am–5 pm
Saturday 9 am–5 pm
Sunday 9 am–5 pm

Hours shift for holidays and class-schedule changes — worth a quick check before a special trip.

The classes they run

Kickboxing classes on the schedule at FitFusion Athlete (FKA Powerhouse Kickboxing & Fitness) @ Cross Garage Gym, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🔥 Cardio Kickboxing 2 mentions

“I would recommend the Powerkickbox classes to anyone, whether they are interested specifically in building kickboxing skills or just an intense workout.”

All gyms that run cardio kickboxing →

🧒 Kids Kickboxing 14 mentions

“My daughter has been working with Coach K for a little over 2 months and she’s happy with the results she’s seeing on the vball court, so far.”

All gyms that run kids kickboxing →

👤 Private Lessons 3 mentions

“Fit Fusion Athlete has been a game-changer for my daughter’s personal training and volleyball skills.”

All gyms that run private lessons →

Teens Kickboxing 2 mentions

“I have been doing jump training with Coach K twice a week for only a couple months and it is already the strongest and most conditioned I have been since high school!”

All gyms that run teens kickboxing →

Other martial arts here

Kickboxing gyms are usually multi-discipline. Here's what else members mention training under the same roof at FitFusion Athlete (FKA Powerhouse Kickboxing & Fitness) @ Cross Garage Gym — mined from their reviews and the gym's own info.

🏟️ MMA

“Best trainer/coach I’ve had for working out and mma Always prepared with specialized workouts specifically for me, always energetic and pushes you to do your best”

Other gyms that also teach mma →

🛡️ Self-Defense

“With over 30+ years of knowledge, K helped me transform from a skinny kid into a self defense machine.”

Other gyms that also teach self-defense →

Disciplines are mined from reviews and the gym's own info — they show what members have trained, not a formal class guarantee. If you specifically want muay thai, boxing, or MMA alongside your kickboxing, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 19 Google reviews — in their own words.

🧑‍🏫 expert, motivating coaching 4 mentions

“Best trainer/coach I’ve had for working out and mma Always prepared with specialized workouts specifically for me, always energetic and pushes you to do your best”

💦 killer cardio workout 2 mentions

“I would recommend the Powerkickbox classes to anyone, whether they are interested specifically in building kickboxing skills or just an intense workout.”

⚖️ great for weight loss 7 mentions

“My daughter has been working with Coach K for a little over 2 months and she’s happy with the results she’s seeing on the vball court, so far.”

🧼 clean, well-equipped gym 3 mentions

“Great facility with great staff.”

🤝 friendly, family gym 5 mentions

“I was really intimidated by her at first - she is pretty badass - but she's super attentive, supportive, a great teacher and "kicks" your butt!”

From the reviews

Coach K. is an impeccable athletic trainer. Plain and simple– it’s rigorous training. He will push you to overcome your limits and motivate you to always become a better version of yourself tomorrow. Change cannot happen unless you really put the effort into changing.

★★★★★ — Paris, Dec 2024

I highly recommend Coach K to any athlete who is serious about getting stronger, faster, and better at their sport. Coach K comes prepared to each session with a plan customized to my level and goals. And it is never the same workout twice – having many variations keeps each work out interesting and stimulating.

★★★★★ — Patrick, Jan 2024

We feel so fortunate to have had Coach K train our kids! His private sessions were meticulously planned and customized to meet their needs. His deep understanding of volleyball allowed him to focus on specific areas that truly helped our athletes improve.

★★★★★ — Grace, Dec 2024

We came to Coach K after he was highly recommended for volleyball strength training. My daughter has been working with Coach K for a little over 2 months and she’s happy with the results she’s seeing on the vball court, so far.

★★★★★ — Cynthia, Jan 2024

Excerpts from public Google reviews. Read all 19 reviews →

Your first kickboxing class at FitFusion Athlete (FKA Powerhouse Kickboxing & Fitness) @ Cross Garage Gym

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.

Kickboxing is a contact sport. Warm up, pace yourself, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find FitFusion Athlete (FKA Powerhouse Kickboxing & Fitness) @ Cross Garage Gym

19 Tech Cir, Natick, MA01760

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.