Seattle Mariners 30th Anniversary Patch Black 59FIFTY Fitted Hat
Seattle Mariners 30th Anniversary Patch Black 59FIFTY Fitted Hat - 6 7/8 is backordered and will ship as soon as it is back in stock.
* If you do not know your size, refer to the instructions below the chart. If you are in between sizes and are concerned about a proper fit, consider shopping at a Sports Treasures® retail location or choose a product that is Adjustable *

Find your Fit
To measure your head for a New Era hat, you can use a flexible tape measure to find your cap size:
- Place the tape measure in the middle of your forehead.
- Wrap the tape measure around the circumference of your head, about half an inch above your eyebrows and ears.
- Ensure the tape measure is straight and not twisted.
- Make sure the tape measure feels snug, but not too tight, where the sweatband will rest.
- Use the New Era size chart above to convert your measurement from inches or centimeters to a fitted size.
- If you're between sizes, we recommend rounding up.
You can also use a piece of string to measure your head and then measure the length of the string with a ruler.
* New Era 59FIFTY fitted hats are crafted with precision, but minor variations in fit & color may occur due to differences in their materials, manufacturing processes, and dye treatments. We are happy to accept a return on most items if there are issues with the sizing or color. *
Description
Description
Celebrate three decades of Mariners baseball with the Seattle Mariners “Guinness” 30th Anniversary Patch 59FIFTY Fitted Cap by New Era. Featuring a rich black and brown Guinness-inspired colorway, this cap brings retro flair with a classic Mariners wordmark logo across the front. The 30th Anniversary side patch commemorates the franchise’s journey from its 1977 debut to becoming a staple of Pacific Northwest sports culture.
Perfect for fans who honor Mariners history and appreciate timeless, understated design.
Product Details:
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Official New Era 59FIFTY Fitted Cap
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Classic Mariners script logo on front
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Mariners 30th Anniversary side patch (1977–2007)
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Guinness-themed black and brown colorway
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Tonal New Era flag on left side
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Flat visor and high structured crown
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100% Polyester






