Best Flat Iron: Kristin Ess 3-in-One Flat Iron — 1 1/4" The Kristin Ess 3-in-One Flat Iron — 1 1/4" ($80) has titanium plates to create smooth and sleek styles with minimal damage. With this iron, you can achieve pin-straight hair, s-waves, flat-iron waves, and polished curls. It can go up to 430 degrees Fahrenheit and has automatic shut-off after 30 minutes of nonuse. Image Source: target.com Kristin Ess 3-in-One Flat Iron — 1 1/4" $80 from target.com Buy Now