Certainly, you may require your employees to observe good habits of grooming and personal hygiene and present a neat, professional appearance at all times.   A professionally and properly attired employee helps present and maintain a positive work environment with a minimal amount of distraction.

Many of the employee handbooks I write include an appearance standard section.  Here are some ideas that you may want to incorporate into your policy.

• No torn or ripped clothing
• No stained or dirty clothing
• No sheer or see-through clothing
• No offensive or harassing messages or logos on clothing
• No shorts or skirts above mid-thigh
• No stretch shorts or athletic wear
• No body piercings other than ears
• No visible tattoos
• No bare midriffs
• No unsafe shoes or accessories

You may want to add a clause that states that employees who report to work inappropriately dressed will be sent home and are expected to return to work in proper attire.

You may change policies whenever it suits you.  Just remember to give your employees reasonable notice before you make the change.