ATC PRO TEAM POLO. S4039 6.3-oz, 100% performance polyester interlock with wicking technology No Bleed Fabric (NBF) created with a unique cationic dye process for easy printing Rib knit collar Moisture wicking Breathable Tagless Classic fit   Size Chart (S4039) Measurement XSSMLXL2XL3XL4XL Chest - Full Measure 37"40"43"46"49"52"56"60" Sleeve Length-CB 17 3/4"18 1/2"19 1/4"20"20 3/4"21 1/2"22 1/4"23" Measurements are from SanMar Canada spec sheets and may include standard tolerance.