1200 Miles in 2026 Invincible Challenge Unisex tee alt colors
Invincible Challenge - 600 Miles in 2026
Your path. Your pace. Your journey.
Stay motivated to move all year long with the 2026 Invincible Challenge!
Take on the challenge solo or as part of a team. There’s no limit to how many teammates you can have. (Teams are formed in the challenge log starting January 1, 2026, and each member registers individually.)
You can begin anytime, and all miles completed beginning January 1, 2026 count toward your goal. ALL fitness activities count: run, walk, cycle, swim, row, etc.
There are no strict deadlines, but the goal is to finish your distance by the end of 2026.
This registration option includes:
- tshirt
- digital access to our optional manual log
-
a downloadable tracker you can print and color in as you go
- digital finisher certificate you can download and print upon completion
ABOUT THE SHIRTS:
• combed and ring-spun cotton/polyester blend
• Light Weight
• Pre-shrunk fabric
Disclaimer: The fabric is slightly sheer and may appear see-through, especially in lighter colors or under certain lighting conditions.
Size guide
| LENGTH (inches) | WIDTH (inches) | CHEST (inches) | |
| XS | 27 | 16 ½ | 31-34 |
| S | 28 | 18 | 34-37 |
| M | 29 | 20 | 38-41 |
| L | 30 | 22 | 42-45 |
| XL | 31 | 24 | 46-49 |
| 2XL | 32 | 26 | 50-53 |
| 3XL | 33 | 28 | 54-57 |
| LENGTH (cm) | WIDTH (cm) | CHEST (cm) | |
| XS | 68.6 | 42 | 78.7-86.4 |
| S | 71.1 | 45.7 | 86.4-94 |
| M | 73.7 | 50.8 | 96.5-104.1 |
| L | 76.2 | 55.9 | 106.7-114.3 |
| XL | 78.7 | 61 | 116.8-124.5 |
| 2XL | 81.3 | 66 | 127-134.6 |
| 3XL | 83.8 | 71.1 | 137.2-144.8 |
