100% Cotton Ateesdas is the only authorized seller. Please don’t buy our products from other fake sellers. Sizing to 5XL !!! Half chest width (inches): S=18; M=20; L=22; XL=24; 2XL=26; 3XL=28; 4XL=30; 5XL=32. Ultra cotton short sleeve tee T-shirt soft and comfortable. Double-needle neck, sleeves and hem, roomy unisex fit. 100% cotton. Wash with cold water, inside out. Ateesdas is an Amazon Registered Brand. Our T-shirts are custom printed with love in USA.