JET Boston - South End

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JET Boston - South End JET has built a consistent reputation of Results.

Through assessments, programming, knowledge, experience, and the ability adapt to a diverse clientele, our mission is to create a regimen tailored for the purpose of building a Better Faster Stronger YOU.

10/22/2026

STRENGTH 1st🥇

Don’t get us wrong…

Cardio, Mobility, Nutrition, and Sleep/Stress management all play a role in keeping your body functioning optimally throughout your life.

Yet, WITHOUT STRENGTH TRAINING, you:

❌ lose bone density
❌ increase symptoms of depression and anxiety
❌ decrease your metabolic health
❌ destabilize joints
❌ increase the rate of sarcopenia (muscle mass loss)
❌ increase all-cause mortality

So while the other components of health and wellness matter, Strength training ranks at the 🔝 for longevity because it protects the things that decide whether you stay independent and healthy as you age.

The evidence is Strong 💪🏽(pun intended)

10/21/2026

The NIGHT CREW 🦉🌝

After a full day of work, family, and everything in between, they still show up for themselves and each other.

Whether it’s a FLIGHT Program or in the ring with ROXBURY BOXING , they bring the energy and FINISH STRONG ‼️

1st SPRINT Club was a success 💨💨Thank yall for coming through 💪🏽Next link up this weekend ⬇️Comment ‘SPRINT’ and Join th...
10/19/2026

1st SPRINT Club was a success 💨💨
Thank yall for coming through 💪🏽

Next link up this weekend ⬇️

Comment ‘SPRINT’ and Join the crew 🚀

10/17/2026

JET’s signature semi-private training program 🚀

🚨Our FLIGHT members gain 5–10+ lbs of muscle and drop up to 25 lbs of body fat in 12 weeks 🚨

Comment “FLIGHT” to learn more or secure a spot ✅

This small group training program gives you:
🔸3 months of Progressive Training
🔸Individualized attention and coaching
🔸Nutrition education & assistance
🔸Heart rate training
🔸InBody check-ins
🔸JET Mobile app
🔸Group chats & More

Lock in and experience why our FLIGHT community continues to BREAK BARRIERS in Strength, Performance, and Wellness ‼️

10/15/2026

Boston’s 1st SPRINT CLUB this Saturday‼️

Comment “SPRINT” for the link to sign 🆙

📍Madison Park Field
⛽️ Pre/Intra session beverages by Pure Green Roxbury | Superfood & Smoothies
❤️‍🩹 Injury screening/Cooldown stretching by FYF Physical Therapy + Wellness

More to come, sign ups for this Saturday close tomorrow 12pm 🛫

When life gets overwhelming, take a step back, reset your mindset, and come back stronger. 💯🥊🔥
10/14/2026

When life gets overwhelming, take a step back, reset your mindset, and come back stronger. 💯🥊🔥

3 DAYS till Takeoff 💨Boston’s 1st SPRINT CLUB is launching this Saturday 9am at Madison Park Field ‼️Sign up via the 🔗 i...
10/13/2026

3 DAYS till Takeoff 💨

Boston’s 1st SPRINT CLUB is launching this Saturday 9am at Madison Park Field ‼️

Sign up via the 🔗 in bio or head to jetboston.com/SPEED to learn more ⏩️⏩️

❤️‍🩹 Recovery cold-pressed juices provided by Pure Green Roxbury | Superfood & Smoothies
❤️‍🩹 PT/Massage Vendors interested: email [email protected]

Let’s GO!!

Address

435 Columbus Avenue
Boston, MA
02116

Opening Hours

Monday 5am - 9pm
Tuesday 5am - 9pm
Wednesday 5am - 9pm
Thursday 5am - 9pm
Friday 5am - 9pm
Saturday 8am - 6pm
Sunday 8am - 8pm

Telephone

+16172385230

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