The Authentic Elevation Training Mask 2.0 in Medium size features a sleek blackout style design, perfect for high altitude training. Made by the brand Training Mask, this mask comes with a stylish bag for easy storage and transportation. The medium width ensures a comfortable fit for most users, while the updated 2.0 model offers improved functionality and durability. Whether you're a professional athlete or just looking to enhance your workout, this training mask is a valuable tool for achieving your fitness goals.