Youth Dri-Power® Core Performance T-Shirt - Moisture-Wicking is designed for youth athletes seeking reliable performance for training, practice, and team wear. 4.1 ounce 100% polyester interlock. Key features include Dri-Power® Moisture Wicking Technology; Heat sealed label; "R RUSSELL" on left sleeve end; Self-fabric crew neck collar; Garment protects against the sun with 30+ UPF; Set-in sleeves.