Non-iron shirts require little-to-no ironing, yet there are times when you want the collar to stay a little crisper throughout the day. But don't set your iron too hot! Non-iron shirts can be damaged when ironing temperatures are set too high.

The Calvin Klein Steel Plus dress shirt is engineered for performance. High-technology wrinkle-free stretch fabric requires less ironing, while wicking properties pull away moisture for cool, dry comfort. A slim fit delivers a tailored look that defines refinement.

Regular fit clothes also fit more relaxed, though they're not necessarily baggy. It's a professional-looking style that's tailored to suit different body shapes and sizes. Compared to a classic fit, regular fit has slightly less room. Classic fit is looser, whereas regular fit is in between slim and classic fit.

Cut closer to the body to flatter the physique, a slim fit shirt is narrower at the chest, waist and hem, as well as being slightly shorter in length. In comparison to a classic fit, there is a lot less fabric, so you'll find that it can look considerably neater once tucked in.