WEAR404 LLC
GRIMM — BEAST PROTEIN (long sleeve)
Worn by those who don’t need approval.
GRIMM — BEAST PROTEIN (long sleeve)
Shipping? It’s on us.
Couldn't load pickup availability
We test what we make.
No filters. Just fabric.
Who needs whey when you’ve got rage? Beast Protein™ doesn’t promise lean muscle - it promises claws, fangs, and that look in your eyes that makes spotters nervous.
Every scoop is handcrafted with nightmares and gym chalk, bottled straight from the transformation process. Forget bulking season - this is beast season.
GRIMM essential. Warning: side effects may include howling at mirrors.
Fabric & Care
Fabric & Care
• 100% airlume combed ring-spun cotton
• Heather colors are 52% combed and ring-spun cotton, 48% polyester
• Athletic Heather and Black Heather are 90% combed and ring-spun cotton, 10% polyester
• Fabric weight: 4.2 oz./yd.² (142.4 g/m²)
• 32 singles
• Regular fit
• Side-seamed construction
• Crew neck
• Cover-stitched collar
• 2″ (5 cm) ribbed cuffs
• Blank product sourced from Nicaragua, Honduras, or the US
Size & Fit
Size & Fit
| Size guide preview (Imperial) | ||||
| Size | Shirt Length | Chest Width | Chest to fit | Sleeve Length |
| XS | 27 | 16 ½ | 31–34 | 25 |
| S | 28 | 18 | 34–37 | 25 ⅝ |
| M | 29 | 20 | 38–41 | 26 ¼ |
| L | 30 | 22 | 42–45 | 26 ⅞ |
| XL | 31 | 24 | 46–49 | 27 ½ |
| 2XL | 32 | 26 | 50–53 | 28 ⅛ |
| Size guide preview (Metric) | ||||
| Size | Shirt Length (cm) | Chest Width (cm) | Chest to fit (cm) | Sleeve Length (cm) |
| XS | 68.6 | 42 | 78.7–86.4 | 63.5 |
| S | 71.1 | 45.7 | 86.4–94 | 65 |
| M | 73.7 | 50.8 | 96.5–104.1 | 66.6 |
| L | 76.2 | 55.9 | 106.7–114.3 | 68.3 |
| XL | 78.7 | 61 | 116.8–124.5 | 69.9 |
| 2XL | 81.3 | 66 | 127–134.6 | 71.4 |
Policies & Compliance
Policies & Compliance
• Traceability:
- Weaving—India, South Korea
- Dyeing—El Salvador, California
- Manufacturing—Nicaragua, Mexico, Honduras, or the US
• Contains 0% recycled polyester
• Contains 0% dangerous substances
Age restrictions: For adults
EU Warranty: 2 years
In compliance with the General Product Safety Regulation (GPSR), WEAR404 LLC and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 1021 E Lincolnway, Cheyenne, WY 82001, USA or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.
