ABOUT O2
BE MORE YOU
O2 started as a small yoga & pilates studio in the heart of Aspen, Colorado. Surrounded by endurance athletes, adventure enthusiasts, and overall health-conscious individuals, Brittany Van Domelen envisioned building a brand that caters to all aspects of well-being
O2 offers a space for everyone to experience a peaceful environment focused on wellness... from powerful yoga, fitness, and dynamic pilates classes and customizable spa treatments to luxurious, sought-after activewear and loungewear.
MISSION
We believe in making wellness accessible to all who wish to elevate, transform, and grow. We provide thoughtful services that align with each individual's intention.
LOCATIONS
ASPEN
408 South Mill Street
Aspen, CO 91611
DALLAS
4205 Buena Vista Street
Dallas TX 75205
HEAR FROM OUR CLIENTS...
OUR TEACHERS

As a professional dancer, Pilates has become a lifeline for Ali and a way to stay injury free. Ali's mom first started taking her to Pilates as a teenager, but she fell in love with the practice in college. The more Ali learned and felt personally how Pilates changed her body and life for the better, the more she knew she needed to share it with others!
HOMETOWN: Tuscaloosa, Alabama
TEACHERS & MENTORS: Susan Douglas Roberts, Sarah Newton, Laura West Strawser
Practice Inspiration: Since she is trained in classical and contemporary Pilates, Ali loves to find creativity in her class structure, while staying true to the fundamentals of Classical Pilates. She's inspired by the other instructors around her and loves to take as many classes from others as possible to see how their minds work to build a session.
Experience & Certifications: Ali is comprehensively trained through Texas Christian University’s 700+ hour Pilates Teacher Training Program and the BODYBAR Pilates Teacher Training Program. Ali has been teaching Pilates since 2021 with experience in both group fitness settings as well as private training at Equinox and BODYBAR Pilates.
Playlist: All the pop princesses (especially Taylor Swift) and some fun throwbacks!
Social Handle: @ali.b.marshall

Caroline has been practicing pilates from a young age. As a pre professional Ballerina - pilates played a huge part of her cross training then turned into a career. She has been teaching Pilates & Ballet for 10 years across the DFW metroplex. She is a Lululemon Legacy Ambassador. Caroline strongly believes that pilates is meant for ALL bodies and you can totally have fun while working out.
HOMETOWN:Kansas City, Kansas
TEACHERS & MENTORS:Karen Sanzo, Kristen Anderson
Practice Inspiration:"Setting up clients for success, I want my class to be user friendly to ALL bodies. There will always be a modification as well as a progression."
Experience & Certifications:Balanced Body, Progressive Ballet Technique, BFA in Ballet & Dance Performance
Playlist:Always a throwback AND a guilty pleasure song everyone can sing along to
Social Handle:@berkiki

Chelsea's yoga journey began in 2019 which led to a deeper meditation practice in 2022 from Breathe Meditation and Wellness. She has been teaching yoga in Dallas at different studios for 5 years and has been a formal meditation instructor for 2 years.
Yoga found Chelsea during a challenging time in her life when she was searching for relief from panic disorder occurring from a car accident. From the first day on my mat, Chelsea was hooked and knew this was something she didn’t want to be without, but also had to share. Leaving the studio gave Chelsea a sense of peace and calmness that she'd never really felt before. It taught her how to slow down, live in the present moment, and reconnect to her breath- ultimately changing her life.
She left her job and decided to become a full time teacher, dedicating her life to sharing this gift that ultimately lies within.
" It doesn't have to look perfect, its just the process of letting go of any structure or rules through art that teaches our mind and body to unlearn old patterns and relearn new ways of approaching our wellness. Always a student sometimes a teacher."
HOMETOWN:San Antonio, Texas
TEACHERS & MENTORS:Crystal Rae, Marine Chapon, Peter Crone, and all of Chelsea's relationships have been her biggest teachers.
Practice Inspiration:Chelsea is inspired by nature, dancers (especially Kylie Shea), and all types of music.
Experience & Certifications:ERYT 500 and 200 CMT, plus advanced trainings in Costa Rica. Chelsea has led many workshops in Dallas as well as corporate events.
Playlist:"Jon Hopkins, any music that embodies rhythm and emotion, jungle beats. I'm a huge Massive Attack fan so sometimes that's sprinkled in!"
Social Handle:@chelseanicoleyoga
OUR FOUNDER

An Aspen native, Brittany Van Domelen begin working as a manager and assistant buyer at O2 Aspen in 2011, helping grow the fitness, fashion, and beauty business from the ground up. She learned the ins and outs of day-to-day operations; the want and need sof clients and employees; and of Aspen's dedication to a yoga and Pilates studio and spa. In 2015, Brittany was presented with the opportunity to buy the O2 Aspen Studio and Spa and couldn't pass it up.
She believes in supporting the local business community of Aspen, offering jobs ot hard-working locals, and providing the best services to both Aspenites and those who visit the beautiful town she calls home. Brittany discovered she has celiac disease, and is passionate about educating herself about nutrition and viewing food as medicine. Her daily muse is fitness and design. When she was a child, Brittany would draw little girls in elaborate clothing, and write stories about fashion shows. She's recently realized this dream in launching her new line, ARTEM. Today she splits time between New York City and Aspen. You'll find Brittany in Aspen often, either with her twins in tow, or taking a yoga class in studio.