Naperville

Seriously the best HIIT workouts I’ve ever done. I’ve loved every single instructor and the community is amazing here. Every class is uniquely different, the music/energy is top notch, and my strength is noticeably improved. Can’t recommend Shred enough!

I postponed trying this place out for years because I was nervous it'd be too rigorous for someone who hadn't hit the gym in 7 years. I was wrong--they provide a killer workout and an atmosphere you can adjust it to the level you need for your own stage of fitness. Classes reliably start on time and have allowed me to keep a workout rhythm for over 6 months now.

I originally found this spot through a Chicago-based workout community I'm a member of and I loved it. I knew I was falling behind on my lifting workouts because I was having a tough time programming my own and then sticking to the routine, so finding Shred415 was a breath of fresh air! The workouts are different every day and they're fully customizable depending on personal needs and energy levels. The schedule is pretty robust too and fits my current work calendar since I commute downtown just about every day. EDITED ON 4/11/2026: Considering it's been about a year since I wrote my original review, I'm still very much a member of Shred415 Naperville. Everything written above is still true and they've been tweaking their schedule a little bit to add more classes on the weekend and week nights!

Shred415 Naperville is both strength and cardio with tons of energy and fun!!! It’s my favorite workout! The studio has the best community feel to it and the staff makes you feel like family. I recommend Shred415 Naperville to anyone looking for a new fun workout class!!

Not sure if the receptionists were new or still in training, but there was a lot of confusion with attendee placement. I arrived 10 minutes before class started and my workout was interrupted to move me onto the floor bc I wasn’t supposed to be on the treadmill to start. This caused me to miss the entire first strength portion because we were already 20 minutes into the class. Other studios prioritize being on time but it seems like this studio still lets in a ton of late people and unfortunately caused me to have my workout interrupted. It’s common sense to me to place late people wherever there are open spaces instead of stopping someone in the middle of running to get them off the treadmill. The instructor was good but other than that kind of ruined my flow.

⭐⭐⭐⭐⭐ **Incredible first-time experience – highly recommend Shred415!** I just took my very first **Shred415** class at the Naperville location and it was fantastic! The signature 4/15 format (four 15-minute segments alternating between high-energy treadmill drills and strength training) kept things moving, challenging, and never boring. It’s the perfect mix of cardio and strength that leaves you feeling accomplished and energized. Special shoutout to Instructor Eileen really good and gave great instruction the entire time. As a complete beginner to this style of class, I felt fully supported. She explained everything clearly, offered modifications, kept the energy high, and made sure everyone was doing the moves safely and effectively. Her coaching made a huge difference and helped me get the most out of the workout without feeling overwhelmed. The studio has a motivating vibe, and the whole experience was so positive that I’m already planning on going back (and bringing friends!). Whether you’re new to fitness classes or a regular, this is a great spot. If you’re in the Naperville area, definitely check out Shred415 – and try to catch a class with Eileen if you can. I highly recommend it!

Love everything about Shred! The instructors are amazing, the classes kick your butt and you'll make so many friends!!

I have been going to Shred for 3 months now and I love it. It is hard, pushes me out of my comfort zone so I see improvements and makes me feel great after I have finished a class. I highly recommend Shred to anyone who wants to see real change and feel great!

Fun atmosphere, great instructors and a really good workout for those looking for something different.

I’m not one to usually belong to a gym, but after trying Shred, I’m hooked. The instructors are all terrific and I never feel pressured, just inspired. Even though it’s a group class, it’s an individual workout where each person is encouraged to do their best and reach their own personal goals.

Shred is the most superb community ever! The energy level is always high in every class among all instructors! The workouts are top notch and incorporate a large variety of moves for all levels. The studio is clean, organized and they have childcare - which is a huge bonus!

I don't have enough good things to say about my experience at Shred 415. The instructors I've had have been super on top of explaining what to expect, the movements, and how to navigate this super challenging workout. I really enjoyed the small educational bits that Steph worked in throughout the class and the enthusiasm this crew has for coaching fitness for life. It is refreshing to be greeted with warmth in a fitness setting which can sometimes be intimidating. Thank you, Shred 415! Keep up the great work.

I have never done a group workout class before Shred and now I’ve been 6 times in the past few weeks! I really enjoy the pacing and atmosphere of the classes. I am absolutely working harder in these classes than I do on my own and I’m excited to keep coming!

Tried Shred 415 for the first time this morning, and I absolutely LOVED it! I’ve done circuit training workouts, and this class is great with the weights and treadmill. The high energy of our awesome instructor, Ashley, helped explain the class beforehand and ran it smoothly. I will say, I think it’s helpful if you’ve done weight lifting classes previously, because it is very fast paced, and the moves change quickly. I had a blast, and can’t wait to go again!

I love Shred 415 Naperville a lot. I always have a lot of fun when I am there. All the instructors are absolutely great. My favorite instructor is Addie. Addie is a phenomenal instructor who is very nice and caring. I respect Addie’s teaching style. She makes every work out fun and engaging, and her energy and enthusiasm are infectious. I really love all the Shred classes, and Shred 415 is a lot better than my previous gym that closed down. My favorite class at Shred is Total Body because you get to do a variety of exercises. From the owner to the manager, instructors, staff, and the entire crew of Shred 415 Naperville, they are all very welcoming and kind, making it a truly special place. I would highly recommend this place to anyone looking for a great workout and in a fun atmosphere.

I was looking for something different than biking and running since and I have LOVED every single class I have taken. I have done 5 classes so far and love the intensity during and the soreness I feel after. I don’t tend to like group exercise classes but this is different. All the teachers and other people in the class are kind and supportive and it does not have a competitive vibe, more competing with yourself which is how I like to exercise.

I absolutely love everything about the classes , the front desk staff are helpful and greets everyone by name ! The trainers are very knowledgeable and engaging! The concept of weight training and cardio in one session sold me ! You won’t be disappointed

I tried a Shred415 class as a class pass user and was hooked instantly. I love the energy, the instructors, and most importantly the workout. The days and times offered are convenient and they have a great childcare room which is a plus and has saved me in a pinch. I’m now an ultimate shredder!

Tried this place out recently and it was great! The space is squeaky clean, the girls were so nice and welcoming! The gym is a dark vibe, which I love, and plenty of space and equipment provided for each person. Can’t wait for my next class!

An amazing work out every time! I feel so much better going to Shred classes and each time they are different and get you sweating. The staff is so welcoming and nice, definitely recommend!

SHRED415 offers challenging workouts with awesome trainers. Two years ago my old gym closed its doors and I struggled to find a program that offered well rounded high intensity interval training with consistent coaching. After trying many places for a year and a half, I decided to take a class at SHRED. While my first few classes were tough, I thoroughly enjoyed the mix of cardio and strength training. I am so happy I joined, I feel great and have experienced health benefits as well! I am so glad Ashley talked me into joining 🙂

Shred415 Naperville is a must to check out! The energy, the workout, the community, and the vibes are always 10/10! Truly a workout for all fitness levels and a blast to take!!

Great workout. Fun community. Give it a try.❤️

I’ve been coming to Shred415 since November 2024 and absolutely love it! Instructors are wonderful and motivating. Highly recommend!

Love working out at Shred! The music and energy help motivate me to do much more than if I was just working out in my basement by myself! The instructors are great - fun and encouraging, even at 5AM:)

The workouts are efficient, effective and energetic! I love that the Naperville Shred415 community is so welcoming and committed!

Love the format, love the people, love the personal progress, love the ability to commit at my own pace.

Amazing classes for every level of fitness! Everything about it is well thought out and the community is amazing. Getting stronger every day!

Shred 415 Naperville is the best! I’ve been working out here for almost a year and feel better than ever. The classes are fun! The community is amazing, and everyone is so encouraging.

Shred is my favorite workout! The class format is great, the instructors are super motivating, and the Shred community is warm and welcoming. Go Shred!

Shred 415 is the BEST!!! It is a challenging workout for all abilities, has such a great, inclusive vibe, amazing playlists, motivating instructors, and such a supportive community! I have been a shredder in Naperville since it opened (2020) and it’s still my favorite way to start the day 😊. It’s a great mix of cardio and strength and offers such an amazing workout!

Always a killer workout! Music is always on point and the ins tructors are very motivating and full of energy!

I have been working out at Shred415 Naperville since they opened starting with free pop-ups in the park to try out a class based workout rather than just doing my own thing at the gym. I quickly fell in love and got my then-fiancé to join with me to get into a routine before our wedding. That same routine stuck through our wedding, through a pregnancy (literally working out mere hours before going in labor), and continues now through postpartum. The instructors make it a fun and motivating environment with an incredible community that has supported me through many different phases of life. I truly could not recommend Shred Naperville more!!

The best!! Can’t stop coming back because it’s a great combination of cardio and strength. As a mom, this is the best way to get me time while working on my health! Absolutely love everyone on the team!!!

LOVE LOVE LOVE Shred!! I have been going consistently to Shred for the past 4 years and I'm hooked! I've never been stronger or faster. I love the format, the music, the instructors, the intensity and the community. Every class is different so you never get bored. It's such an efficient, intense workout, and I always feel amazing afterwards. It is great for all levels too. There are strong athletes and beginners mixed in each class. You can always modify or adjust based on your needs. I HIGHLY recommend giving Shred a try - you won't regret it!

Love it over at Shred! The format is a great, customizable workout. The studio is beautiful. I've found which teachers resonate with me the most. Highly recommend!

I started Shred415 after doing home workouts for a couple of years. The Shred community is welcoming and encouraging, pushing you along the way. The high energy and progress (whether a beginner or more seasoned athlete) is what keeps me coming back!

I love Shred415 Naperville!!! The instructors, music, environment, workout - all amazing. So happy that we found this gem!

This is the best workout with the best instructors and the best community. No matter your fitness level, you will love it and become your best self!

I scheduled a class at this Shred415 location within a week of moving to Naperville, eager to find my “new spot”. After a 1-2 year Shred hiatus (when we moved into a high rise with a gym in the building), I was so nervous to return to a HIIT training environment (eeek!) but I had the BEST experience here. I felt extremely welcome and cared for. This made such a difference! Honestly, Shred415 in Chicago can feel pretty cutthroat and intense. This location blew me away with the sense of community - WOW! Also, Erin deserves a big shoutout. She’s incredible! She’s such a skilled instructor and was sure to walk me through the class ahead of time, provided modifications for my pregnancy and was so personable. I cannot wait to come back! Thank you for providing such a warm, inviting space to get a great workout!!!

Shred415 is awesome! The workouts are tough but fun, with a perfect mix of treadmill and strength training. The instructors are super motivating, each with their own way of pushing you to do your best. The friendly staff makes the whole vibe welcoming. I’m working hard, seeing results, and feeling amazing after every class. Highly recommend!

The best workout session is one that my body will respond to positively, delivering results like weight loss, improved stamina, and increased muscle strength—just a few of the benefits I noticed since I started joining SHRED415 Naperville.

I was apprehensive about joining a gym after doing home workouts for years. Shred is exactly what I needed! My first encounter was with the owner, Stephanie, and I could tell right away that she was passionate about the business and fitness and not interested in a money grab. I have had nothing but positive experiences since I’ve stepped foot in the building. Everyone is welcoming and kind. The instructors explained everything thoroughly and the workouts are incredible! So high energy with amazing playlists to boot 🙂 I cannot recommend Shred415 Naperville enough. I look forward to every workout, even the 5 AM classes!