Black / Muscle Shirt
Catalina Heritage Muscle Shirt
A tribute to aviation history, carried into the everyday. The back artwork features a PBY Catalina flying boat from World War II with the American flag, paired with understated Seasonbound branding on the front.
Know your piece.
A tribute to aviation history, carried into the everyday. The back artwork features a PBY Catalina flying boat from World War II with the American flag, paired with understated Seasonbound branding on the front.
A large back graphic and a small Seasonbound mark on the front. Custom Seasonbound inside branding.
Our conservation pledge: 40% of positive companywide net profits, after product costs and other business expenses, will be donated to wildlife conservation. This is a share of profit, not 40% of an individual purchase.
Garment details & sizing
- Bella + Canvas 3483, 100% Airlume combed and ring-spun cotton
- Lightweight 4.2 oz/yd² fabric; relaxed fit and wide, low-cut armholes
- Sizes S–2XL; made on demand
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 |
Production & shipping
Each piece is made after you order. Standard production is estimated at 2–5 business days, plus shipping time; timing can vary. Shipping rates are shown at checkout. Need it by a specific date? Email orders@seasonboundgoods.com before ordering.
Returns & exchanges
Eligible returns must be requested by email within 15 days of confirmed delivery. Items must be unworn, unused, and unwashed. Customers pay return shipping unless the item is damaged, defective, or incorrect. Report those issues within 7 days. Read the full return policy.
Lay a shirt you like flat and compare its measurements to the size chart. Width is the garment measured flat, not body circumference. Product preview images are mockups; screen colors can vary.