Summer of Strength Series – 60 Mile Challenge
Six challenges. Sixty miles. One powerful summer of movement, strength, and motivation.
The Summer of Strength Series is a flexible 60-mile fitness challenge made up of six individual 10-mile challenges, each representing a powerful word of strength. Complete them throughout the summer while building momentum, confidence, and endurance.
The challenge log opens on the first day of Summer — June 21st. While the goal is to finish before the end of summer, Run Motivators challenges are always flexible, so you can participate anytime and move at the pace that works best for you.
Walk, run, hike, bike, swim, or move in any way that fits your goals. Every mile counts.
What’s Included
• Official Summer of Strength T-Shirt
• Online log access for all six 10-mile challenges
• Six downloadable finisher certificates — one for each completed challenge
ABOUT THE SHIRTS:
• 100% combed and ring-spun cotton OR Heather colors are cotton/polyester blend
• Fabric is light weight and soft
• 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 |
| 4XL | 34 | 30 | 58-61 |
| 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 |