123-456-7890

737-777-4748

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 Austin's High-Energy

Group Fitness Studio

Structure Meets Sweat & Serious Results

Structure Meets Sweat

& Serious Results

Designed For Busy Professionals Craving Structure

Rotating Weekly Programs Backed By Science

Small-Group Training With Expert Coaching

HIIT, Strength & Conditioning Workouts

Your Workouts Will Never Repeat

Designed For Busy Professionals Craving Structure

Rotating Weekly Programs

Backed By Science

Small-Group Training

With Expert Coaching

HIIT, Strength &

Conditioning Workouts

Your Workouts Will Never Repeat

Comfort Zones End Here

Book Your First Class

Not Your Average Austin Gym

GritBox is not a big-box gym or bootcamp. GritBox is a high-energy group fitness studio in Austin where training meets purpose. You'll sweat hard and see results with rotating workouts, killer playlists and expert coaches who actually care.

  • Structured weekly training blocks

  • Built to burn fat, build muscle & boost grit

  • Music-driven workouts with real beats, real results

  • Focused formats: GRIT HIIT, METCON, CORE

  • Every level welcome: beginners to athletes

Call 737-777-GRIT (4748)

What Makes Us Different

Home For Grit, Strength & Sweat

You found group workouts that actually work.  GritBox classes are built for every level, backed by real coaching and fueled by community. Experience results focused coaching, classes and programs.

  • Smaller class sizes (max 20) 

  • Intense atmosphere, welcoming energy

  • Converted industrial space with neon grit

  • No guesswork. We program every workout

  • Coaches who know your name & push you

 Signature GritBox Classes

 METCON 45

Strength Meets Stamina

Full-throttle 45-minute metabolic burn.

CORE + CONDITION

Core Focus Meets Dynamic Conditioning

Strong center, fast feet.

TOTAL GRIT

Full-Body Progressive Lifting

Heavier loads, smarter gains.

POWER HOUR

Saturday Beast Mode

Max reps, team finishes, pure grit.

Built For Austin

GritBox fits the energy of Austin’s working professionals: located in the heart of the city.

  • Grit-forward atmosphere in downtown Austin

  • No fluff: just coaching, programming & grit 

  • Built for college students & professionals

Real People - Real Grit

Meet Jess & Marcus

Jess Rivera

A former Division I soccer player with a background in sports science and group program design. She specializes in progressive strength training and bringing structure to every workout.

Marcus Rivera

A U.S. Marine veteran turned certified strength coach. Known for tough love, team energy and turning doubters into doers. He brings discipline and heart to every class.

START WITH A

FREE

TRIAL

Try A Free Class

In Austin, Texas

Ready to sweat harder, lift heavier and train smarter? Join us for your first class free. Experience real programming, expert coaching and an atmosphere built for results.

  • Tour the gym 

  • Meet your coach

  • Experience a real class

  • Start training with purpose

Book your first GritBox class. It’s totally free with zero pressure. Just show up and we’ll handle the rest.

Call Us At 737-777-4748

Structured Chaos - Serious Results

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(737) 777-GRIT (4748)

3407 Guadalupe St, Austin, TX 78705