A modern fitness studio located in downtown Sioux Falls.

At SISU Fit, we take a modern approach to wellness. With state-of-the-art equipment, group classes, personal training options, and a thoughtfully designed space, every detail has been considered. Whether you're looking for a data-driven plan to take your fitness regimen to the next level or simply a gym to get your workout in, our space offers a wide range of options tailored to your personal goals.

View Memberships Tiers

Our Approach

A 5-track system for building strength, improving health, and supporting longevity.

Meet the Coaches

A supportive coaching team committed to helping you build strength, confidence, and consistency.

  • Chris Mello

    Co-Founder | Head Coach
    Chris is the co-founder of SISU Fit with over 20 years of coaching experience, helping people build strength, resilience, and longevity through intelligent training.

    Qualifications

    - Functional Range Conditioning (FRC)

    - Functional Range Assessment (FRA)

    - Kinstretch Instructor Certified

    - Certified Personal Trainer with 20+ Years Coaching Experience

    - Gym Owner & Operator since 2008

  • Annie Mello

    Co-Founder | Coach | Strategic Partnerships
    Annie is the co-founder of SISU Fit. She helps clients build confidence through consistent, realistic training that fits into everyday life.

    Qualifications

    - Certified Personal Trainer

    - 20+ Years Coaching Experience

    - Gym Owner & Operator since 2008

  • Nicole Zacher

    Master Trainer | Studio Manager
    Nicole brings a detail-oriented approach to coaching, helping clients improve movement quality, strength, and mobility.

    Qualifications

    - Certified Personal Trainer

    - 20+ Years Coaching Experience

    - Licensed Physical Therapist 

  • Britta Larson

    Full Time Coach
    Britta helps clients move better and feel stronger by combining strength training with mobility-focused coaching.

    Qualifications

    - NASM Certified Personal Trainer

    - NASM Certified Nutrition Coach

  • Image of Coach Josh Lydic

    Josh Lydic

    Josh supports clients in building strength and moving with more ease by blending functional strength work with intentional mobility training. His coaching focuses on helping people feel capable in their bodies, develop steady progress, and carry that confidence into everyday life.

    Qualifications

    - Precision Nutrition Level 1

    - NASM - CPT (in progress)

  • Image of Coach Kelsey Johnson

    Kelsey Johnson

    Kelsey helps clients build strength, improve movement, and develop confidence through personalized coaching that prioritizes progress without burnout.

    Qualifications

    - NASM - Certified Personal Trainer

    - NASM - Certified Nutrition Coach

    - NASM - Women’s Fitness Specialist

  • Image of Coach Cassie Willet

    Cassie Willet

    Cassie is a Vinyasa Yoga instructor dedicated to helping members improve strength, flexibility, balance, and overall well-being through mindful movement. Passionate about lifelong learning, she is currently pursuing a NASM Certified Personal Trainer (CPT) certification to broaden her ability to support members in reaching their fitness goals.

    Qualifications

    - RYT 200 Hours Yoga Alliance

    - NASM - CPT (in progress)

  • Image of Coach Briana Even

    Briana Even

    Brianna helps clients build functional strength, move with greater confidence, and create realistic habits that lead to lasting results. Her coaching focuses on making fitness practical, empowering, and sustainable so clients feel stronger both in the gym and in everyday life.

    Qualifications

    - NASM - CPT (in progress)