Due to the Canada Postal strike - some addresses within the country will be temporarily unavailable for delivery and returns processing. All packages will be delivered and returns processed as soon as possible.
Skip to Main Content
Skip to Filters
Skip to Filters
Skip to Footer
Switch Stores
USA
Gift Cards
Track Order
Help
My Account
Language
English
Français
men
women
More
kids
jerseys
t-shirts
headwear
kids
jerseys
t-shirts
More
headwear
headwear
accessories
SIGN UP & SAVE!
Seattle Mariners
New Era
Seattle Mariners Hats
Filters
Cancel
Your Selections
New Era
Hats
Leagues
MLB
Gender/Age
Men
Kids
Baby
Women
Sub Department
Adjustable
Fitted
Flex
Knit
Snapbacks
Strapbacks
Trucker
Popular Collections
Hot New Arrivals
Throwback Gear
1 - 72 of 107
Hats
Filter
Filters
Top Sellers
sort-by
Lowest Price
Highest Price
Top Sellers
Newest Items
72 Items
page-size
24 Items
48 Items
72 Items
96 Items
MLB
New Era
Hats
107 Items
1
2
1 of 2
$47.99
$
47
99
Seattle Mariners New Era Game Authentic Collection On-Field 59FIFTY - Fitted Hat - Navy
Almost Gone!
$47.99
$
47
99
Seattle Mariners New Era 59FIFTY Fitted Hat - Navy
Almost Gone!
$47.99
$
47
99
Seattle Mariners New Era Alternate 2 Authentic On Field 59FIFTY - Fitted Hat - Royal
Almost Gone!
$58.99
$
58
99
Seattle Mariners New Era 2024 MLB Clubhouse 59FIFTY Fitted Hat - Navy
Almost Gone!
$47.99
$
47
99
Seattle Mariners New Era Authentic Collection On Field 59FIFTY - Fitted Structured Hat - Navy/Teal
$55.99
$
55
99
Seattle Mariners New Era 2023 City Connect 59FIFTY Fitted Hat - Royal/Black
Almost Gone!
$58.99
$
58
99
Seattle Mariners New Era 2024 Batting Practice On-Field 59FIFTY Fitted Hat - White
Almost Gone!
$58.99
$
58
99
Seattle Mariners New Era 35th Anniversary 59FIFTY Fitted Hat - Pink/Cream
Almost Gone!
$48.99
$
48
99
Seattle Mariners New Era Blackout Trucker 59FIFTY - Fitted Hat
Almost Gone!
$47.99
$
47
99
Seattle Mariners New Era Game Authentic Collection On-Field Low Profile 59FIFTY - Fitted Hat - Navy
Almost Gone!
$35.99
$
35
99
Seattle Mariners New Era Women's Multi 9TWENTY Adjustable Hat - Light Blue
Almost Gone!
$55.99
$
55
99
Seattle Mariners New Era 2023 City Connect Low Profile 59FIFTY Fitted Hat - Royal/Black
Almost Gone!
$42.99
$
42
99
Seattle Mariners New Era Youth Game Authentic Collection On-Field 59FIFTY - Fitted Hat - Navy
$57.99
$
57
99
Seattle Mariners New Era 9FORTY A-Frame Adjustable Hat - Black
$40.99
$
40
99
Seattle Mariners New Era Infant My First 9FIFTY Adjustable Hat - Navy
$77.99
$
77
99
Seattle Mariners New Era 2023 City Connect Low Profile 59FIFTY Fitted Hat - Royal/Black
$62.99
$
62
99
Seattle Mariners New Era Game Day Bold 9FIFTY Snapback Hat - Navy
$70.99
$
70
99
Seattle Mariners New Era Authentic Collection On Field Low Profile Game 59FIFTY Fitted Hat - Navy
Most Popular
in Hats
$62.99
$
62
99
Seattle Mariners New Era 9FIFTY A-Frame Trucker Snapback Hat - Navy
$50.99
$
50
99
Seattle Mariners New Era Tonal Pop 9FORTY A-Frame Adjustable Hat - Black
$53.99
$
53
99
Seattle Mariners New Era 9FORTY A-Frame Trucker Adjustable Hat - Black
$70.99
$
70
99
Seattle Mariners New Era Alternate 2 Authentic On Field 59FIFTY Fitted Hat - Royal
$53.99
$
53
99
Seattle Mariners New Era Team Tone 39THIRTY Flex Hat - Black
$55.99
$
55
99
Seattle Mariners New Era Moleskin Crown A-Frame 9FORTY Adjustable Hat - Navy
$80.99
$
80
99
Seattle Mariners New Era Duo Logo 2.0 59FIFTY Fitted Hat - Navy
$63.99
$
63
99
Seattle Mariners New Era 2023 City Connect 39THIRTY Flex Fit Hat - Royal/Black
Most Popular
in Hats
$57.99
$
57
99
Seattle Mariners New Era Logo 39THIRTY Flex Hat - Black
Most Popular
in Seattle Mariners
$65.99
$
65
99
Seattle Mariners New Era Team Art 9FIFTY Snapback Hat - Cream/Black
$57.99
$
57
99
Seattle Mariners New Era MLB Team Classic Game 39THIRTY Flex Hat - Navy
Most Popular
in Seattle Mariners
$77.99
$
77
99
Seattle Mariners New Era 2023 City Connect 59FIFTY Fitted Hat - Royal/Black
Most Popular
in Hats
Almost Gone!
$70.99
$
70
99
Seattle Mariners New Era Alternate 2 Authentic Collection On-Field Low Profile 59FIFTY Fitted Hat - Royal
$77.99
$
77
99
Seattle Mariners New Era Sands 59FIFTY Fitted Hat - Black
$77.99
$
77
99
Seattle Mariners New Era 2024 Fourth of July 59FIFTY Fitted Hat - Khaki/Black
$40.99
$
40
99
Seattle Mariners New Era Toddler Team 9TWENTY Adjustable Hat - Navy
Most Popular
in Kids Hats
$75.99
$
75
99
Seattle Mariners New Era 2024 Batting Practice Low Profile 59FIFTY Fitted Hat - Cream
Almost Gone!
$70.99
$
70
99
Seattle Mariners New Era 59FIFTY Fitted Hat - Khaki
$55.99
$
55
99
Seattle Mariners New Era Logo Essentials 9FORTY A-Frame Adjustable Hat - Khaki
Almost Gone!
$80.99
$
80
99
Seattle Mariners New Era Major Sidepatch 59FIFTY Fitted Hat - White/Navy
$70.99
$
70
99
Seattle Mariners New Era Authentic Collection On Field 59FIFTY Fitted Hat - Navy
Most Popular
in Seattle Mariners
Almost Gone!
$62.99
$
62
99
Seattle Mariners New Era 2024 Batting Practice 39THIRTY Flex Hat - Cream
$62.99
$
62
99
New Era Seattle Mariners Gray Corduroy Golfer Snapback Hat
$79.99
$
79
99
Seattle Mariners New Era Laser Cut 9FIFTY Snapback Hat - Black
Most Popular
in Hats
$77.99
$
77
99
Seattle Mariners New Era 2024 Armed Forces Day Low Profile 59FIFTY Fitted Hat - Black
Almost Gone!
$65.99
$
65
99
Seattle Mariners New Era Logo Strike 9FIFTY Snapback Hat - Navy
$74.99
$
74
99
Seattle Mariners New Era National Baseball Hall of Fame Low Profile 59FIFTY Fitted Hat - Navy
Almost Gone!
$74.99
$
74
99
Seattle Mariners New Era Lonestar 59FIFTY Fitted Hat - Cream/Navy
Almost Gone!
$53.99
$
53
99
Seattle Mariners New Era Neo 39THIRTY Flex Hat - Navy
$53.99
$
53
99
Seattle Mariners New Era Neo 39THIRTY Flex Hat - Black/White
Almost Gone!
$84.99
$
84
99
Seattle Mariners New Era Vintage Herringbone 59FIFTY Fitted Hat - Brown
Almost Gone!
$50.99
$
50
99
Seattle Mariners New Era Classic Sidescript 9TWENTY Adjustable Hat - Cream/Navy
$80.99
$
80
99
Seattle Mariners New Era Ransom 59FIFTY Fitted Hat - Navy
$62.99
$
62
99
Seattle Mariners New Era Tone Foam Meshback Golfer Snapback Hat - Navy
$63.99
$
63
99
Seattle Mariners New Era Infant My First 59FIFTY Fitted Hat - Navy
$53.99
$
53
99
Seattle Mariners New Era Team Neo 39THIRTY Flex Hat - Navy
$50.99
$
50
99
Seattle Mariners New Era Retro Bold A-Frame Trucker 9FORTY Adjustable Hat - Black
$62.99
$
62
99
Seattle Mariners New Era Bikini Bottom Trucker 9FIFTY Snapback Hat - Navy
$74.99
$
74
99
Seattle Mariners New Era Cooperstown Collection Turn Back The Clock Steelheads 59FIFTY Fitted Hat - Black
$63.99
$
63
99
Seattle Mariners New Era 2024 Fourth of July 39THIRTY Flex Hat - Khaki/Black
$65.99
$
65
99
Seattle Mariners New Era Neon Golfer Snapback Hat - Blue
$65.99
$
65
99
Seattle Mariners New Era Iron Golfer Snapback Hat - Cream
$65.99
$
65
99
Seattle Mariners New Era Seeing Diamonds A-Frame Trucker 9FIFTY Snapback Hat - Navy
$68.99
$
68
99
Seattle Mariners New Era Full Circle Corduroy Golfer Adjustable Hat - Navy
$74.99
$
74
99
Seattle Mariners New Era Shadow Logo 59FIFTY Fitted Hat - Navy
$57.99
$
57
99
Seattle Mariners New Era Pivot 9FORTY Adjustable Hat - Black
$57.99
$
57
99
Seattle Mariners New Era Tech 39THIRTY Flex Hat - Navy
$57.99
$
57
99
Seattle Mariners New Era Authentic Collection Cuffed Knit Hat - Navy
$60.99
$
60
99
Seattle Mariners New Era Active Dash Mark 39THIRTY Flex Hat - Black
$50.99
$
50
99
Seattle Mariners New Era Spring Training Circle Foam A-Frame 9FORTY Trucker Adjustable Hat - White/Navy
$55.99
$
55
99
Seattle Mariners New Era Retro Wordmark 9FORTY A-Frame Trucker Adjustable Hat - White
$50.99
$
50
99
Seattle Mariners New Era Game Day 9TWENTY Adjustable Trucker Hat - Stone
1
2
1 of 2
MLB