Science Teacher Gift. Science Shirt. Biology Shirt. Science Tee. Stem Shirt. Stem Gift. Mitochondria Shirt. Mitochondria Gift #OS5093 All our shirts are custom made and we are excited to print the shirt for you! *** Shipping and Processing time *** Production time: 1-4 business days U.S. Shipping time: 3-4 business days. *** International Orders *** Due to COVID-19 the shipping time on international orders is between 14-36 business days. Material Details Unisex Shirt: [+] 100% preshrunk cotton [+] Double-needle sleeve and bottom hem [+] Loose Fit Color ash is 98% cotton and 2% polyester Sizes Unisex Shirt: [+] Small - (Width: 18" - Length: 28") [+] Medium - (Width: 20" - Length: 29") [+] Large - (Width: 22" - Length: 30") [+] XL - (Width: 24" - Length: 31") [+] XXL - (Width: 26" - Length: 32") [+] XXXL - (Width: 28" - Length: 33")