KEYSER, W.Va. — Administrators at one West Virginia high school have seen enough of pajamas, spiked jewelry and underwear, including the sleeveless muscle shirts known as "wife beaters."

A new dress code bans any attire that could "disrupt the educational process."

A committee of students, teachers and administrators at Keyser High School agreed the existing dress code needed some beefing up, Principal John Haines said.

Teenagers who wore pajamas and bedroom slippers for dress-up days during Spirit Week, for example, had begun wearing them on regular days, too. Administrators had also had enough of bare bellies and exposed panties.

The revised policy bans students from revealing any undergarment, including "wife beater" undershirts, and prohibits tube tops and halter tops. Shirts must be long enough to meet the waistband of the bottom garment.

Other banned items include hanging chains and spiked jewelry, see-through clothing, skirts higher than mid-thigh, and head coverings including bandanas and scarves.

Clothing with images or statements considered obscene, suggestive or violent are off-limits, as well as anything promoting drugs, alcohol and tobacco.

"There aren't a whole lot of changes," Haines said. "We just wanted to let people know as they begin purchasing clothes for the coming school year."