Burn off those calories in a Women's Sauna-Effect Vest Top Get one or two vest tops Available in sizes S-M or L-XL Please see Full Details for full measurements  Lined with polymer heat-trapping fabric to help work up a sweat during your workout  Creates a sauna-effect to increase core temperature  U-shaped chest design supports breasts Easily take on and off with the middle zipper  Sits comfortably on your body due to polyester and elastane material   Buying Options: 9.99 pounds instead of 19.99 pounds for 1-pack - save 50% 19.99 pounds instead of 39.98 pounds for 2-pack - save 50%