This is the on-field Flex Base jersey that was introduced in 2016, which the players are currently wearing. It is made by Majestic and is a size
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MAJESTIC AUTHENTIC 48 XL, SAN FRANCISCO GIANTS BUSTER POSEY FLEX
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Sf giants jersey - Gem
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Authentic San Francisco Giants Jerseys, Throwback San Francisco
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San Francisco Giants 48 Size MLB Jerseys for sale
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://i.ebayimg.com/images/g/jooAAOSwCf1hafuf/s-l400.jpg)
MAJESTIC AUTHENTIC 48 XL, SAN FRANCISCO GIANTS
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://i.ebayimg.com/thumbs/images/g/uL8AAOSw1wNlKrnN/s-l640.jpg)
San Francisco Giants 48 Size MLB Jerseys for sale
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Buster Posey #28 San Francisco Giants Majestic Big & Tall Cool
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Men's San Francisco Giants Buster Posey Majestic Gray Road Hispanic Heritage Player Flex Base Jersey
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Authentic Majestic 48 XL, San Francisco Giants HUNTER PENCE BLACK