The Crane Fitness Men's Sauna Vest in size M is a brand new activewear piece designed for gym workouts. This sauna suit features a full zipper closure, scoop neckline, and is made of blended fabric with antimicrobial properties. The sleeveless design makes it ideal for various activities like weightlifting, cross training, yoga, and running. With its athletic fit and black color, this sauna vest is perfect for all seasons and is a must-have for any fitness enthusiast looking to enhance their workout experience.