solidcore

solidcore is a boutique fitness company operating over 160 studios across the United States. Founded in 2013, the company specialises in a 50-minute high-intensity, low-impact strength training workout performed on custom-built reformers. The workout uses slow, purposeful movements designed to target slow-twitch muscle fibres, aiming to build long, lean muscle while protecting joints.

The company was initially funded with a $175,000 personal investment from the founder's life savings. solidcore describes its mission as challenging everyone to seek their strongest self and positions its workout as a transformative fitness experience.