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
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://i.ebayimg.com/images/g/LzwAAOSwTCNifK34/s-l1600.jpg)
MAJESTIC AUTHENTIC 48 XL, SAN FRANCISCO GIANTS BUSTER POSEY FLEX BASE Jersey
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://images.footballfanatics.com/san-francisco-giants/mens-new-era-black-san-francisco-giants-neon-59fifty-fitted-hat_ss5_p-5292826+u-mt7qcp6iofoyxedlghel+v-3qke0acbld6nkmvusi4h.jpg?_hv=2&w=340)
San Francisco Giants Gear, Giants Jerseys, San Francisco Pro Shop, San Francisco Apparel
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://preview.redd.it/n95bnoiz2f841.png?auto=webp&s=201af84b6250877c2732ca616508c3ab0f0835d5)
Last Names on Home Jerseys in 2020 (Not Just Replicas) : r/SFGiants
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://images.nittanyweb.com/scs/images/products/116/larger/madison_bumgarner_autographed_signed_san_francisco_giants_cream_majestic_cool_base_jersey_size_xl_beckett_beckett_p6275317.jpg)
San Francisco Giants Autographed Jerseys 100% Authentic Signed Memorabilia
The jersey has the crest sewn on in tackle twill and the official MLB logo patch embroidered on the back top collar along with the official sleeve
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://i.ebayimg.com/images/g/vYoAAOSwlNtj1Cov/s-l1600.jpg)
Authentic Majestic 48 XL, San Francisco Giants HUNTER PENCE BLACK FLEX JERSEY
![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, BUSTER POSEY, FLEX BASE Jersey
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://img.gem.app/785853945/1t/1693421974/mlb-sf-giants-vintage-jersey.jpg)
Sf giants jersey - Gem
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://i.ebayimg.com/images/g/31IAAOSwFw1ifK3l/s-l1600.jpg)
MAJESTIC AUTHENTIC 48 XL, SAN FRANCISCO GIANTS BUSTER POSEY FLEX BASE Jersey
S M L XL XXL 3XL 4XL. Neck 14-14.5 15-15.5 16-16.5 17-17.5 19-19.5 19-19.5 20-20.5. Sleeve 32-33 33-34 34-35 35-36 36-36.5 36.5-37 37-37.5. Hip 34-36
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://i.ebayimg.com/images/g/1PsAAOSwkaJiroO9/s-l1200.jpg)
AUTHENTIC MAJESTIC BUSTER POSEY 48 XL SAN FRANCISCO GIANTS FLEX BASE Jersey
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://images.footballfanatics.com/san-francisco-giants/san-francisco-giants-nike-official-replica-home-jersey-mens_ss4_p-12005510+u-2o0qhgq47a98d5or9090+v-3942a39ef0024987998c07cd2ae6d75a.jpg?_hv=2&w=340)
San Francisco Giants Apparel, San Francisco Giants Jerseys, San Francisco Giants Gear
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://i.ebayimg.com/images/g/e1QAAOSwgsNhhIB-/s-l1600.jpg)
Authentic Majestic 48 XL San Francisco Giants BUSTER POSEY COOL BASE JERSEY
![Authentic Buster Posey San Francisco Giants Flex Base BLACK Jersey 48](https://fanatics.frgimages.com/san-francisco-giants/mens-majestic-buster-posey-number-28-cream-san-francisco-giants-big-and-tall-cool-base-player-jersey_pi2178000_altimages_ff_2178383alt8_full.jpg?_hv=2&w=900)
Buster Posey #28 San Francisco Giants Majestic Big & Tall Cool Base Player Jersey - Cream