COURSE AMERICA™ ORIGINAL
Original artwork © 2026 Course America. Certain designs are registered. All rights reserved.
Rights & PermissionsJefferson x Megalonyx
Before paleontology had a name, Thomas Jefferson was studying giant fossil bones from the American wilderness.
In 1797, he named the creature Megalonyx, meaning “great claw.”
Years later, the species would carry his name as Megalonyx jeffersonii.
Jefferson x Megalonyx captures that unexpected meeting of founder, curiosity and prehistoric America.
Course America. Stories worth carrying forward.
.: 6.1 oz heavyweight
.: Relaxed fit
.: Unisex fit
.: Pre-shrunk 100% ring-spun US cotton
.: Sewn-in label
| S | M | L | XL | 2XL | 3XL | 4XL | |
|---|---|---|---|---|---|---|---|
| Width, in | 18.25 | 20.25 | 22.00 | 24.00 | 26.00 | 27.75 | 29.75 |
| Length, in | 26.62 | 28.00 | 29.37 | 30.75 | 31.62 | 32.50 | 33.50 |
| Sleeve length from center back, in | 16.25 | 17.75 | 19.00 | 20.50 | 21.75 | 23.25 | 24.63 |
| Size tolerance, in | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
DELIVERY
Estimated U.S. delivery is 3–7 business days from shipment. Tracking is emailed when your order ships.
RETURNS
Items cannot be returned or exchanged for an incorrect size or change of mind. If an item arrives damaged, defective, misprinted, or incorrect, contact support@courseamerica.co within 30 days of delivery with your order number and clear photos.