Unfortunately I do have loose skin. I also have a lot of stretch marks because I use to weigh over 420 pounds in the past. I've always worn compression tank tops even when I was heavy to keep things tucked in, so I'm not sure if that is what has helped my skin to not sag that bad. I was told by my doctor that I will need to remove the excess skin because it will not go back. Having this role of skin still makes me feel big. I do work out 2 to 3 times a week and I do mostly cardio swimming cycling kick box class to try to Tone my body. But I soon plan to start lifting weights so hopefully I can build some muscle in my arms To fill in my saggy skin in my arms and also build muscle on my chest.