About [solidcore] Mosaic

[solidcore] is a fitness studio that offers Pilates-inspired workouts on their proprietary reformer, [sweatlana]. The studio aims to help clients tap into their inner strength and achieve a unique workout experience. With locations in Fairfax, Virginia, and other areas, [solidcore] provides resistance-based exercises that focus on building muscular strength, endurance, and definition in the core, upper body, and lower body. While some clients have reported issues with instructors providing unclear instructions, others have praised the studio's awesome coaches and enjoyed their experience. The workouts are considered tough, but the instructors are informative and provide encouragement. However, some clients have noted concerns about the studio's cleanliness and temperature control, which can affect the overall workout experience.

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Reviews for [solidcore] Mosaic

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  • Jun 2026

    Coach Mimi is my favorite as she has a way of truly making members feel seen and does a great job motivating you to challenge yourself. I appreciate all the energy and work she puts into her coaching and her intentional encouragement. She is a great example of a senior master coach! Coach Sara also has good sequences.

    I only wish we did less carriage lunges since those can end up in the sequences a lot and it can get a bit tiring and repetitive. The coaches here are good, although sometimes there’s a lack of consistency in the class experience depending on the coach.

    I hope they continue to grow as a studio and continue listening to member feedback.

  • Apr 2026

    I’ve been doing Solidcore consistently for a few months now and been to a few other studios but can firmly say Mosaic is my favorite location! To me Mosaic feels smaller and less intimidating than Tysons or Reston. Raquel is the BEST instructor she is very motivating and I’m so glad she was my Starter class instructor. Shes really patient and great at explaining the movements.

  • Feb 2026

    I switch in and out of Solidcore a lot to try various workouts but nothing has ever helped me with my fitness goal compared to Solidcore workouts. This specific studio is where I have been going for last 3 years now and I recommend it to everyone looking to stick to a workout routine. I do wish the studio was bigger or the availability was better!

Hours

Monday: 5AM - 9PM
Tuesday: 5AM - 9PM
Wednesday: 6AM - 9PM
Thursday: 5AM - 9PM
Friday: 5AM - 9PM
Saturday: 6AM - 5PM
Sunday: 7AM - 7PM

Tips

accepts credit cards garage parking, street parking wheelchair accessible gender-neutral restrooms women-owned offers military discount open to all bike parking

Location

2985 District Ave Ste 150, Fairfax

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