New Balance Mens Sleeveless Novelty Performance Top Polyester New Balance Clothing Size Guide Go the extra mile with the Sleeveless Novelty Performance Top. Polyester fabrication features a relaxed fit feel. Round-neckline. Sleeveless. Brand logo hits at left chest. Straight hemline. 100% polyester. Machine wash cold, tumble dry low. Imported. Measurements: Length: 29 in Product measurements were taken using size MD. Please note that measurements may vary by size.