Tonic Size Guide You showcase a strong and beautiful look on the court in this tonic® Match Tee! Mesh construction at upper bodice provides increased breathability while you work up a sweat. Scoop neckline. Short sleeves. Straight hem. 61% nylon, 25% polyester, 14% elastane.Mesh: 94% polyester, 6% elastane. Machine wash cold, line dry. Imported.