Well the plastic grips to your skin causing your
body temp to rise while your working out causing you to sweat a little more. And it also raises your
heart rate a little, so all that helps you lose a little more weight while your working out. My brother was a wrestler in college and the day before weigh ins he and his buddy would work out wearing garbage bags then go sit in a sauna as well. This is all water weight remember but its a pretty good instant slimming technique, I also noticed that it keeps the skin tighter so you dont have that baggy skin look if you lost alot of weight.
