2025 Invincible Challenge Unisex Muscle Shirt - MILES
2025 Invincible Challenge - 2025 MILES
Stay motivated to move all year!
Tackle the distance alone or form a team. There's no limit to the number of team members. (Teams are formed in the log. Each member signs up individually.)
Begin anytime on or after January 1, 2025.
There are no "official" deadlines, but the goal is to try and complete the distance by the end of 2025.
THIS REGISTRATION OPTION INCLUDES:
•Unisex muscle shirt
•digital access to our optional manual log
•a downloadable tracker you can print and color in as you go
ABOUT THE SHIRTS:
This soft, sleeveless tank is so comfy you're going to want to wear it everywhere, be it on your couch, out on a walk, or during a yoga class. The relaxed fit and low-cut armholes gives it a casual, urban look.
• 100% airlume combed ring-spun cotton
• light weight
• Relaxed fit
• Wide, low-cut armholes (ladies, you may need a cami underneath for this one!)
Stay motivated to move all year!
Tackle the distance alone or form a team. There's no limit to the number of team members. (Teams are formed in the log. Each member signs up individually.)
Begin anytime on or after January 1, 2025.
There are no "official" deadlines, but the goal is to try and complete the distance by the end of 2025.
THIS REGISTRATION OPTION INCLUDES:
•Unisex muscle shirt
•digital access to our optional manual log
•a downloadable tracker you can print and color in as you go
ABOUT THE SHIRTS:
This soft, sleeveless tank is so comfy you're going to want to wear it everywhere, be it on your couch, out on a walk, or during a yoga class. The relaxed fit and low-cut armholes gives it a casual, urban look.
• 100% airlume combed ring-spun cotton
• light weight
• Relaxed fit
• Wide, low-cut armholes (ladies, you may need a cami underneath for this one!)
Size guide
| SHIRT WIDTH (inches) | SHIRT LENGTH (inches) | CHEST TO FIT (inches) | |
| S | 18 | 26 | 34-37 |
| M | 20 | 27 | 38-41 |
| L | 21 5/8 | 28 | 42-45 |
| XL | 23 5/8 | 29 | 46-49 |
| 2XL | 25 5/8 | 30 | 50-53 |
| SHIRT WIDTH (cm) | SHIRT LENGTH (cm) | CHEST TO FIT (cm) | |
| S | 45.7 | 66 | 86.4-94 |
| M | 50.8 | 68.6 | 96.5-104.1 |
| L | 53.3 | 71.1 | 106.7-114.3 |
| XL | 58.4 | 73.7 | 116.8-124.5 |
| 2XL | 63.5 | 76.2 | 127-134.6 |
