Our Story

We aren’t just another exercise studio.

Three15 is a new concept that was conceived after a search for the perfect workout. I found that I loved barre, but I also loved cardio. Unfortunately, I could never find a class that allowed me to do both, so three15 was born. Three15 is a group exercise class in a studio that offers 15 minutes of cycling, 15 minutes of barre, and 15 minutes of strength work. 

Everyone has a different story and three15 wants to be a part of yours! At three15 our main goal is to challenge you physically and mentally. We want you to get out of your comfort zone! We wanted to create a place that welcomes everyone.  We want all shapes and sizes.

We are a place where you begin to make change happen, from the outside and from the inside. We want to be part of your story that makes change happen. 

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Mandy Moseley


I received my degree from the University of Alabama in Nutrition.  While I was in college, I began teaching a variety of exercise classes.  In 2006 I opened Montgomery Adventure Boot Camp which allowed me to help over 2,000 people start a new chapter of their story.  It is my passion to help people learn about nutrition and to teach them and encourage them to have a more healthy lifestyle.

I am divorced with 4 children. I am remarried to an incredible man, who also happens to be my biggest cheerleader. I share that with you because I am a flawed human who has a messy story, but that messy story is what makes me. I had to make some difficult decisions in order to be in this position. I know what stepping out of your comfort zone in order to make change looks like.  Sometimes making the decision to start something new is the hardest part. We want to be your encourager and help you make that decision to join  three15 in order to make that change. 

Haley Grover

Studio Manager

I was immediately drawn to Three15 when I first heard about the concept.  I was at a point in my life where I needed a change.  Before becoming a mom, I managed to go to work, exercise, and teach a barre class at the end of the day.  I could even fit in a spin class or two during the week, or on a lazy Saturday…whatever that was.  The day my daughter was born everything about my prior lifestyle changed.

When I went back to work and she was in childcare I still could not find time in the day to fit everything in, most importantly that hour for myself.  The passion I had developed as an instructor to amazingly strong independent women became so intense that I knew I had to make it my full time career.  I came to a crossroads and told myself I could either continue the path I was going down or, “cliché” way to put it, take the road less traveled.  Tough decisions were made but I decided to follow my passion.  This change was not only for my family, but most importantly for myself.  Three15 came along at the exact time I needed it to incorporating the cardio I needed for my mind and the barre I needed for my soul.

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