Frost and Fortitude Challenge alt colors Unisex t-shirt
Frost and Fortitude 100 Mile Challenge
"As the world grows cold, I move forward with fortitude and resilience."
This is not a race. It is a motivational way for you to establish and/or maintain a healthy, active lifestyle. How and when you complete the miles is up to you.
Begin anytime on or after Nov 1, 2025. Take as long as you need to finish.
THIS REGISTRATION OPTION INCLUDES:
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unisex t-shirt
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Private group access - interact virtually with a supportive community of women from all over the world. Make new friends, cheer each other on, and stay motivated!
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Access to our OPTIONAL online mileage log and downloadable color-in tracker that you can use throughout the year
ABOUT THE SHIRTS
• 100% combed and ring-spun cotton; Heather colors are cotton/polyester blends
• light weight
• Pre-shrunk fabric
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 |
| 4XL | 34 | 30 | 58-61 |
| 5XL | 35 | 31 | 62-65 |
| 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 |
| 4XL | 86.4 | 76.2 | 147.3-155 |
| 5XL | 89 | 78.7 | 157.5-165 |
