Gildan 42400B - Performance Youth Long Sleeve T-Shirt 100% polyester jersey knit no-snag fabric 100% polyester jersey This T-shirt works hard all day long thanks to AquaFX wicking technology and Freshcare antimicrobial treatment. Coordinate: Adult 42400, Ladies 42400L 100% polyester jersey 4.5-oz. AquaFX? wicking technology