The only problem is this is a little tight and because I have hives that is attracted by tight materials on my body, the first time I used it, after I took it off, it looked like I still had the arm warmer on except in red.

I can wear it for short periods of time, if I ensure that I put on my itch cream to stop it from irritating my arm.  After a few wears, it stretched enough to wear I do not need the itch cream but I still ensure to put extra lotion on my arm.  I like wearing the arm warmer for work because we have to wear uniforms and I only have two long sleeves shirts.  Since my uniform jacket isn't warm enough for me with the short sleeve shirts, the arm warmers help.  I am certain after continued use the arm warmer will stretch a little bit more.

If you are sensitive like me, try to find some other arm warmers because you will be irritated.  My arms are also thin.  The title was not joking when it said, "Tight Fitting."