Workout: Work up a sweat with this lightweight sauna belt which increases your body temperature during high-intensity exercise, aiming to burn more calories and speed up results! Sauna belt: Get a workout sauna belt. Comfortable: The flexible design does not hinder movement, so you can easily adjust to suit you and wear comfortably under clothes. Sizes: Choose from a UK 10-12 (73cm-78cm) or a 14-16 (78cm-83cm approximately). Colours: Choose from yellow, blue or pink. Material: Made from 75% spandex and 25% nylon. Workout Sauna Belt | Blue | Living Social