HOTWORX - San Antonio, TX - I10 & De Zavala is a 24-hour infrared fitness studio and gym offering virtually instructed workouts in patented infrared sauna rooms. Members have unlimited 24-hour access to sessions including hot yoga, Pilates, barre, cycling, HIIT, and other infrared sauna workouts built around HOTWORX's 3D Training approach of heat, infrared energy, and exercise.