BYMY ETF
✓ Secure payment
✓ Delivery within 5–11 business days
✓ Easy returns
MORE THAN ACTIVEWEAR
BYMY is more than activewear.
It’s a movement built around discipline, confidence and becoming your strongest self. Every piece is designed to move with you, support your goals and remind you that positive change starts with the choices you make every day.
Built with purposeful design, lasting comfort and honest materials so you can keep moving forward.
Built by discipline. Defined by you.
Fit & sizing
Size Guide
| Size | Chest Width (in/cm) | Length (in/cm) | Sleeve Length (in/cm) |
| XS | 18.50 / 46.99 | 27.00 / 68.58 | 33.25 / 84.46 |
| S | 20.00 / 50.80 | 28.00 / 71.12 | 34.00 / 86.36 |
| M | 21.50 / 54.61 | 29.00 / 73.66 | 34.25 / 87.00 |
| L | 23.00 / 58.42 | 30.00 / 76.20 | 35.50 / 90.17 |
| XL | 24.50 / 62.23 | 31.00 / 78.74 | 36.25 / 92.08 |
This lightweight long-sleeve performance tee is designed for comfortable movement and active days. Crafted from smooth moisture-wicking polyester, the breathable fabric draws sweat away from the skin and dries quickly. Its athletic silhouette provides a streamlined fit for running, cycling, climbing, training, or layering during cooler outdoor sessions.
Minimal branding across the front creates a clean, understated appearance, while the bold back emblem adds a sharp technical identity. Durable Direct-to-Film printing helps keep the graphics crisp through repeated wear, and the tear-away label minimizes irritation. Pair it with track pants, training shorts, or wear it beneath a lightweight shell.
Product Features
- 100% performance polyester
- Extra-light 3.8 oz/yd² fabric
- Breathable and moisture-wicking construction
- Quick-drying performance
- Smooth feel against the skin
- Athletic fit designed for movement
- Long sleeves for additional coverage
- Minimal front branding
- Bold technical back design
- Durable Direct-to-Film printing
- Tear-away label for additional comfort
Care Instructions
- Machine wash cold (max 30°C / 90°F)
- Do not bleach
- Do not tumble dry
- Do not iron
- Do not dry clean
Shipping & Delivery
We’ll prepare and ship your order as quickly as possible. Once your order is on its way, you’ll receive a confirmation email with tracking information. Delivery typically takes 5–11 business days, depending on your location.
Returns
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.