Whether you use a flat iron every day or only on special occasions, if you're looking for the best flat iron for under $100, check out the ISA Professional MIRROR Titanium. It's currently on sale at the ISA Professional website for just $90, discounted from $299.
One of the convenient features of this particular flat iron is that it has 4.5" titanium plates that allow for styling more hair at once. The plates are also tapered so that the iron can be used on bangs or anywhere close to the scalp without worrying about getting burned.
It's also easy to use with an LCD display and no-tangle cord. Use the digital temperature control to set the temp anywhere between 265 to 450 Fahrenheit, based on your own preferences with your hair. The ISA Professional MIRROR Titanium comes with a two-year warranty.
You can find this and other hair care products on the ISA Professional website.