Elevate your training wardrobe to the professional level with this Boston Celtics 2025/26 Authentic Practice Club Sweatshirt from Nike. This pullover's classic fit keeps you comfortable while the fleece lining adds softness and warmth on cooler days. The team logo proudly displayed across the chest lets you feel like part of your favorite team, whether you're putting up a few shots at your local gym or enjoying a day around the house.