Funny 66 Years Old Birthday Tee Shirt for Men, Women, Teens and Children! For anyone celebrating their 66th Birthday and is now 66 years old, this birthday t-shirt makes a great gift! I Don't Know How to Act My Age, I've Never Been 66 Before! This funny 66th Birthday T-Shirt is great for anyone that likes to joke around on their birthday!
Unisex T-Shirt Size Chart
| Size | Inches | Centimeters |
| Width | Length | Width | Length |
| XS | 16.5 | 27 | 41.9 | 68.6 |
| S | 18 | 28 | 45.7 | 71.1 |
| M | 20 | 29 | 50.8 | 73.7 |
| L | 22 | 30 | 55.9 | 76.2 |
| XL | 24 | 31 | 61 | 78.7 |
| 2XL | 26 | 32 | 66 | 81.3 |
| 3XL | 28 | 33 | 71.1 | 83.8 |
| 4XL | 30 | 34 | 76.2 | 86.4 |
Hoodie Size Chart
| Size | Inches | Centimeters |
| Width | Length | Width | Length |
| S | 20 | 26 | 51 | 66 |
| M | 22 | 28 | 56 | 71 |
| L | 24 | 29 | 61 | 74 |
| XL | 26 | 30 | 66 | 76 |
| 2XL | 28 | 31 | 71 | 79 |
Women's Tee Size Chart
| Size | Inches | Centimeters |
| Width | Length | Width | Length |
| S | 18.5 | 25.5 | 47 | 64.8 |
| M | 19.5 | 26 | 49.5 | 66 |
| L | 21 | 26.5 | 53. |
