Muscle Performance
Go beyond basic with “Muscle Performance”—a striking, artist-designed graphic from i Roar Concept Design. Urban, athletic, and unapologetically bold. Available on premium tees, tote bags, and stickers for those who bring energy and edge to every move.
More details
- 65% ring-spun cotton, 35% polyester
- Charcoal Heather is 60% ring-spun cotton, 40% polyester
- Carbon Grey is 55% ring-spun cotton, 45% polyester
- Heavyweight fabric (8.5 oz)
- Regular fit but can run a bit tight
- Unisex sizing
EU GPSR Product Information:
- Manufacturer contact information
- Name: i Roar Concept Design
- Email: iroarconceptdesign-shop@support.fourthwall.com
- Postal address: PO Box 5696 Santa Monica, CA 90405
- Additional information: This product is made for adults. Meets the flammability, lead, cadmium, bisphenols and phthalates level requirements. 2 year warranty in EEA and UK, established by Directive 1999/44/EC.
Size & Fit
Quality Guarantee & Returns
- Quality is guaranteed. If there is a print error or visible quality issue, we'll replace or refund it.
- Because the products are made to order, we do not accept general returns or sizing-related returns.
Muscle Performance Size Guide
| Size label | Length | Width |
|---|---|---|
|
S
|
27
|
20
|
|
M
|
28
|
21
|
|
L
|
29
|
23
|
|
XL
|
30
|
25
|
|
2XL
|
31
|
26
|
|
3XL
|
32
|
28
|