The Boston Celtics have made it to the 2025 Nba Playoffs Celebrate their epic clinch with this Boston Celtics 9TWENTY Adjustable Hat from New Era. The 9TWENTY is New Era's relaxed fit adjustable silhouette, providing a comfortable fit and a well-worn look that sits low. With a classic curved bill and Boston Celtics graphics on the crown, you'll be able to represent your favorite Nba team in style during the playoffs.