Respi Belt is a new generation and unique breathing training device, developed by Progressive Sports Technologies at Loughborough University, England, after extensive research over the years. Respi Belt is manufactured & marketed by OPRO 360 in the UK, the manufacturers of custom-fit and self-fit mouthguards. This innovative device comes with an adjustable elastic compression belt that fits around the ribcage and the lower chest. Respi Belt helps in improving physical performance and has been in significant use among athletes, belonging different sports. Respi Belt is available in various sizes as Large, X-Large, Medium, X-Small, and Small.