97% Cotton, 3% Polyester. Fabric: Fine Knit Gauge, Heather. Design: Plain. Neckline: Cotton Collar, Crew Neck, Lycra Ribbed. Sleeve-Type: Short-Sleeved. Back Neck Tape, Tubular, Twin Needle Stitching. Please Note: 4XL & 5XL Have Side Seams. 165gsm. Sustainability: BCI Approved, No Child Or Forced Labour Used, Oeko-Tex Standard 100 Certified, WRAP Certified. S: 38 in. M: 42 in. L: 44 in. XL: 48 in. XXL: 52 in. 3XL: 56 in. 4XL: 60 in. 5XL: 64 in. Ref: UTRW10283