Basketball players will lose one of their popular fashion from next season as NBA moves to bar players from wearing “ninja-style” headbands next season amid safety concerns, ESPN reported on Monday. Most basketball players including All-Star Jimmy Butler was seen wearing the headgear last season, a fabric band tied at the back of the head with the two ends of the fabric drop flowing loose. HAVE YOU SEEN: Australia Close On Another Win At Basketball World Cup

Though the on-court fashion trend was never formally approved by the NBA, even though it was allowed and now the organization said it will official end the use of it during games.

“The ninja-style headbands aren’t part of the NBA uniform and hasn’t been through the league approval process,” NBA spokesman Mike Bass told ESPN in a statement.

“Teams have raised concerns regarding safety and consistency of size, length and how they are tied which requires a thorough review before consideration of any rule change.

“When some players began wearing them last season, we didn’t want to cause a disruption by intervening midseason, but we notified our teams in May that they would not be part of this season’s uniforms.”

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Philadelphia 76ers player Mike Scott was critical of the decision while other players were bemused by the ruling.

“I love that someone at the NBA had to type the words ‘ninja-style (headwear)’ and ‘consistency of size and length’ as their job today,” wrote the Detroit Pistons’ Blake Griffin.