Welcome to the store - Solid color: 50% Cotton, 50% Polyester (applies to sweatshirts) - Solid color: 100% Cotton; Hot Gray: 90% Cotton, 10% Polyester; All other plaster fabrics: 50% Cotton, 50% Polyester (applies to t-shirts) - Runs true to size. - Unisex is a traditional semi-fit men's t-shirt size but looks good on both men and women. Men should order their regular size but can size up for a more roomy/comfortable feel. - For detailed information on size and color selection, please see listing images. - Actual colors may vary. This is because every computer screen and smartphone screen is capable of displaying different colors, and each person perceives these colors differently. Please note that colors may vary slightly depending on monitor and printed product. - Lets Go Darwin Funny, ideas for Father, Brother, Dad, Son, Grandfather, Grandfather, Husband, Man, Person, Child, Student, Teacher, Uncle, Men. Perfect gifts for Birthdays, Christmas, Father's Day, Mother's Day, Grandparents' Day, Christmas, Autism Day. HOW TO ORDER 𝟏. Choose shirt COLOR. 𝟐. Select shirt SIZE. 𝟑. Select quantity. 𝟒. Click ADD TO CARD. For multiple items, go back to the list and repeat the steps. COMPENSATION - Because all items are custom made for you, we cannot accept returns, refunds or exchanges. However, we will refund or replace the item as soon as possible if there is an error on our part. In that case, please send us proof. (A photo will work). You will be eligible for a refund or replacement if: - The shirt size is wrong. - Wrong shirt color. - Wrong design. - The text is wrong. - Cancellations or changes can only be made within 3 hours of placing the order.