Treadfit is a rapidly growing fitness brand that provides small group customized workouts from certified trainers. Each class will improve your overall fitness levels using interval training on the treadmill, coupled with full-body strength training. At Treadfit, no class is ever the same!

The Workout: Treadfit’s small group classes are the perfect combination of cardio and strength training. Under the guidance of experienced, certified instructors, clients will burn on average between 400-800 calories per class. Treadfit’s workout will increase endurance and improve fat burning – resulting in a stronger, faster, and leaner you! Everyone is welcome at Treadfit: walkers, joggers and hardcore runners. Classes are open to all adults and teens, ages 18 and older.


Single Class


5 Class Pack


Student 5 Class Pack


10 Class Pack


15 Class Pack


20 Class Pack





Essential Starter

8 classes/month




12 classes/month




16 classes/month



Basic Plus

20 classes/month




24 classes/month





Lauren is the owner of Treadfit Shorewood, a sports performance specialist, and an ACE certified Group Fitness Instructor.  She participated in sports growing up, but it was not until 2008 when she was diagnosed with Type 1 Diabetes that exercise became an important aspect of her daily life.  She started as a client at Treadfit Beverly and soon after became an instructor at both the Beverly and Frankfort locations. Lauren is a full-time teacher outside of Treadfit and truly enjoys helping others became the best versions of themselves.


Jenny, an ACE certified group instructor and nutrition specialist, is the founder of Treadfit. After completing five marathons and several half marathons, she began experimenting with shorter bursts of high intensity running mixed with strength training. She saw dramatic improvements in her fitness level, and decided to leave distance running behind. Jenny brings her love of running and fitness to the unique format of Treadfit’s workouts.


Kit has always had a love of fitness. In high school, she ran on the track team & in college, she began strength training. After having kids, she taught pre/postnatal Fit4Mom group fitness classes for 5 years & quickly found her biggest passion of helping people reach their fitness goals. Recently, she became an ACE certified personal trainer & is looking forward to inspire clients during their workouts.


Group trainer, DJ and creative coordinator, Kailee strives to bring a fun and entertaining experience through energy and movement in her weekly classes and pop ups. With 10+ years of group fitness coaching and a 20-year background in performance, music, and professional dance, blending both music and movement together was the driving force behind motivating Kailee to jump into fitness. She sees fitness as more than just performance based goals and a way to improve both mental and physical health. You can catch Kailee weekly at Treadfit, or throughout Chicago leading pop ups and hosting events. One thing is for sure, you can guarantee your workout to be sweat dripping and beat bumping!

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  • The Treadfit class was SO much fun! Lauren’s workout was a combination of cardio and strength training that allowed me to challenge myself every round with the help of her encouragement and amazing playlist! I will definitely be back!!

    Stephanie Leigh Avatar Stephanie Leigh
    November 15, 2022

    After a bad day at work, going to Treadfit wasn’t something I wanted to do but I went and had a great workout!! Lauren does a great job motivating you to work your hardest! I continue to look forward to my workouts even on those bad days!

    Andria Lyn Avatar Andria Lyn
    February 16, 2023
  • I have had a great time working out with Kit and Lauren. The five am classes are the best way to get your morning started!!!! Don’t be scared because it’s a treadmill workout. They focus on competing with yourself and not others. So whether you are an avid runner or just a walker Kit and Lauren can personalize the class for you and help you get stronger

    Melissa Kristine Avatar Melissa Kristine
    December 9, 2022

    The 50 minute class was wonderful, working both cardio and strength. Lauren's coaching was just what I needed, encouraging me to do my best, but not too pushy.

    Janet Ruth Avatar Janet Ruth
    April 22, 2023
  • I’ve never been one to go to a “gym” to workout, but this is totally different. I love everything about it. Lauren is a fabulous instructor and keeps pushing you, which is exactly what I needed. Today was my first class and it most certainly won’t be my last, I cannot wait to come again!

    Sara McGee Avatar Sara McGee
    February 6, 2023

    I highly recommended anyone to try Treadfit and you can do it with a 7 day free pass! I have done CrossFit, gyms, classes etc and I finally feel like I found my fitness fit. Lauren and the instructors are very motivating and you can modify any classes to your fitness level. I equally love the strength and interval classes. Go ahead and try it…. You have nothing to loss and I know you will keep coming back!

    Sarah Elizabeth Avatar Sarah Elizabeth
    March 1, 2023
  • If you want a workout that hits everything you need in just 50 minutes, this is it! It’s cardio and strength in a fun, motivating environment!

    Megan Melvin Janssen Avatar Megan Melvin Janssen
    February 15, 2023

    I’ve never stuck to working out , I’ll do it a couple weeks and I’m over it! I’m over a month in and I’m addicted . I look forward to class and hate when I miss a day. Lauren is amazing. I feel so comfortable in her class. If you haven’t tried it you need too I promise you will love it ! 😁

    Amanda Catalani Avatar Amanda Catalani
    February 9, 2023
  • Lauren is the best instructor! I’ve only been working out at home for the past 2 1/2 years but she’s been pushing hard and motivating me in class! This is not like a normal gym where you are in a “fish bowl”(iykyk) I think that’s one of my FAVORITE parts is it’s smaller and you receive more one on one help with the instructor!! GO TRY A CLASS TODAY! You will not regret it!

    Lisa Esser Avatar Lisa Esser
    December 27, 2022

    This place is awesome! It’s been a while since I have worked out, so I was pretty out of shape. I was able to tailor the class to my abilities and get a great workout. The instructors are so motivating and helpful. The classes are never the same which makes the time go by so fast. I can’t recommend Treadfit enough!!

    Jennifer Helling Kobus Avatar Jennifer Helling Kobus
    February 9, 2023
  • I haven’t worked out in years and was super nervous to walk in. From the start I felt welcome, encouraged, and part of a team! The workouts are hard, but Lauren and Kit are awesome motivators! And the playlists are pretty fantastic too! I now look forward to working out!

    Julie Shimkus Conterio Avatar Julie Shimkus Conterio
    December 9, 2022

    I haven’t worked out in such a long time so walking in I was so nervous. From the start, walking in was not intimidating at all and Lauren made me feel comfortable immediately! The workouts are hard but Lauren and Kit are awesome and encourage you to push yourself while also doing what you are comfortable with. This was the perfect place to get back into my fitness journey!

    Sam Zwahlen Avatar Sam Zwahlen
    December 9, 2022
  • I attended my first class today and it was better than expected! Lauren made you feel motivated. This is a great way to get your workout in, the time slots offered are perfect for anyone who works full time. I will be adding these classes to my weekly routine!

    Amber Engstrom Avatar Amber Engstrom
    November 23, 2022

    Absolutely loved my first class! The class was challenging in all the best ways possible! Kit was very motivating through all of the intervals! Will for sure be going back.

    Hannah Midlock Avatar Hannah Midlock
    November 17, 2022
  • I stepped out of my comfort zone and participated in a class yesterday. After 8 years of no working out, there were times during the workout I thought I may die lol. The Beauty of this work out is you are encouraged to go as hard as you can but reminded you know your limits. That was extremely helpful knowing no one was going to scream and yell because I wasn't moving fast enough. Today, it hurts to sit, my arms hurt lifting my purse and when I stand up I look I could be 90 yrs old 😀 I will be back. Highly pain, no gain.

    Paula Rae Donoho Avatar Paula Rae Donoho
    November 14, 2022

    I have not worked out in probably 6 or 7 years and saw some mutual friends trying out treadfit… so I finally decided to try the 7 day free trial and fell in love! I love being able to schedule my workouts ahead of time! The times are great for my schedule. I have only had the pleasure of having class with Kit & Lauren and both of them are so welcoming and great! Lauren really pushes me to do my best & Kit is great helping me with form and making sure I’m doing everything correctly! All the ladies I have shared class with are wonderful & I love what a welcoming environment i feel walking in.. can’t wait to keep going!

    Kristin Ali Avatar Kristin Ali
    February 11, 2023
  • I heard about Treadfit thru my run club. I like running but want to tone my body. so I did the 7 day trial and then bought the 10 class pass. I have tried the strength class and the treadfit class...I LOVE the treadfit get cardio and strength. you will walk away sore the first few classes...but it gets better....and it's a GOOD hurt!!! I like that the class is different everytime you go in!!

    Nichole Gunty Zemaitis Avatar Nichole Gunty Zemaitis
    February 2, 2023

    Absolutely LOVE every single class I have taken at Treadfit Shorewood. Each class is different and I always burn over 500 calories! Today alone I am at 716 calories burned! Lauren really does a fantastic job instructing us and she also pushes us to the next level! So glad I decided to take the plunge and try Treadfit Shorewood out!

    Karissa D'Amico Avatar Karissa D'Amico
    December 17, 2022
  • I’m back at the gym and so happy. Treadfit is the perfect fit for me. I love the the teachers, the music, and most of all the workouts. I appreciate the instructors watching over you to keep your form correct.

    Lorie Zanelli Avatar Lorie Zanelli
    February 11, 2023

    My wife loves these treadfit classes! She definitely recommends them to everyone. Even if u have no previous gym experience! The instructors are amazing!

    John Koukas Avatar John Koukas
    December 11, 2022