Blue 12 Size MLB Jerseys for sale

Chicago Cubs Blue Jersey Youth Shirt Size 10/12 Genuine Merchandise Sports
Pre-Owned
$14.99
or Best Offer
$4.44 shipping
F+Q^ 0&H* OW] X w.O?!|/ $ S p o n s o r e d
Vintage Majestic BOSTON RED SOX Infant Baby Team JERSEY 12M 12 Months Cotton
Pre-Owned · Majestic
$13.99
or Best Offer
$5.99 shipping
WF+^ WE Z1&* ] 1wN.?!|/ $ S p o n s o r e d
Matt Kemp #27 Los Angeles Dodgers Cooperstown Majestic Jersey Youth 10/12 MLB
Pre-Owned · Majestic
$40.00
or Best Offer
$6.75 shipping
+^ &S* ]J w P.?!|R/ $ LS p o n s o r e d
Jason Giambi #25 New York Yankees Russell Youth Jersey Sz 10/12 Preowned
Pre-Owned · Russell Athletic
$25.99
or Best Offer
$6.99 shipping
O+^J R&C * 3M] JwN.?!|/ $S p o n s o r e d
Philadelphia Phillies Majestic Powder Blue Baseball Youth Jersey SZ Medium 10/12
Pre-Owned · Majestic
$35.00
or Best Offer
Free shipping
11 watching
+^ &7*A R] w.9?!| /TI 1$5
Chicago Cubs MLB Toddler Boy's Pullover Jersey CHOOSE SIZE
Brand New
$19.95
Free shipping
+^J &W* ] w.?! 3|E M/K $ BQ
Detroit Tigers Medium Youth Jersey Size M 10/12
Pre-Owned
$17.99
$4.62 shipping
77 +^NQ &* TH ] w.?N8 !|/ 5$
Atlanta Braves MLB Toddler V-Neck Blue Logo Jersey Shirt - NWT
Brand New
$19.99
$5.50 shipping
7+^ &* ]4 w .?!NU| JK/ 9 R$
Oakland Athletics Vida Blue jersey lapel pin-RETRO Collectible-FREE SHIP
Brand New
$9.99
or Best Offer
Free shipping
+W^T OJ &B*9 ]X w.7?! |8R/ $
100% Authentic Nike MLB New York Mets Blank Jersey Size 12 Months Infant
Brand New · Nike
$59.99
$9.99 shipping
I+^ A& L2* S ]B w E.?!F|/ T $
Boston Red Sox MLB Toddler Boys Short Sleeves Team Navy T-Shirts Jerseys: 12M-4T
Brand New
$19.99
Free shipping
I+^X &*BL 0 L ] N7w. Q?!|5 / $
Infant & Toddler Girls MLB Minnesota Twins 2-Piece Cheer Set New Pick Size
Brand New
$6.99
$5.00 shipping
+F^ &G* ] w.U?A M!F| OZ / $
Detroit Tigers Cabrera #24 MLB Genuine Merchandise Sport Jersey Youth L (10/12)
Pre-Owned
$14.99
$7.00 shipping
+Z^ 0 58& *X ] w.8 VK?! JU| / $
Kids Toronto Blue Jays 2024 City Connect Limited Blank Navy Jersey 4 Size Group
Brand New
$90.23 to $101.05
$5.77 shipping
+3^G &*B ]7 w. ?J!3 |JT /C $S p o n s o r e d
Kids Toronto Blue Jays Vladimir Guerrero Jr. Navy 2024 City Connect Jersey MLB
Brand New
$93.84 to $122.71
$5.77 shipping
+^F U L&* T] 6 w0.? !L7 |/ $S p o n s o r e d
Boys Nike Houston Astros Alex Bregman Rainbow Baseball Jersey Size MED 10/12
Pre-Owned · Nike
$29.95
$7.20 shipping
+^ &*DL 6] w.4? 7!|7/ $S p o n s o r e d
Vtg Mighty Mac Chicago Cubs Jersey Blue Youth Size 10/12 Medium 90s Button-up
Pre-Owned
$19.99
$5.00 shipping
K3+^ 5 &* ]U w.5?E!|/ $
Nike Bo Bichette Toronto Blue Jays Jersey Baseball MLB Youth Boy M Medium 10/12
Pre-Owned · Nike
$28.87
or Best Offer
$7.22 shipping
SX+^ & 0A* ]P wI.?!| 7/ $8
Francisco Lindor New York Mets Nike Jersey 12 MLB Size XL Blue
Pre-Owned · Nike
$99.99
or Best Offer
$7.99 shipping
DJ +^ P&* 9 39 ] w.UC? !|/ K$
Los Angeles Dodgers Will Smith jersey lapel pin-Classic TRUE BLUE Collectable
Brand New
$9.99
or Best Offer
Free shipping
HU+ 8N^ & I* B] w.?!| /O M 7$
Cleveland Shane Bieber #57 Youth Jersey Size 10/12
Pre-Owned
$12.00
or Best Offer
$4.41 shipping
SO+^ & * Q]Z 5w5 .?!T|Q /OE $
Minnesota Twins Toddler 12 months Baseball Jersey stitched Blue Plain back GM TA
Pre-Owned
$19.14
$5.75 shipping
+^ W&* ]U QX w.?F!|T /OA $
Josh Donaldson #20 Toronto Blue Jays Majestic Cool Base Jersey Youth M 10-12-EXC
Pre-Owned · Majestic
$29.99
$5.95 shipping
P+^G T&*X FW 8] 0w. ?!AR |/ $
Milwaukee Brewers MLB Toddler Boy's Pullover Jersey CHOOSE SIZE
Brand New
$19.95
Free shipping
H+^ &C* 9 0] w .?!|D/P $ W
Detroit Tigers Baby Toddler 12 months BASEBALL Sleeper MLB Footie Zippy
Pre-Owned
$15.99
or Best Offer
$4.95 shipping
+^89 & * ] IIw .T?8! |CZ/ G$
Chicago Cubs MLB Jersey Baby Size 12 Months 12M
$10.75
or Best Offer
Free shipping
+^ W0& *D 4] 91 Pw.?!H| /7 $
Prince Fielder #28 Detroit Tigers Majestic Baseball Jersey Youth 10/12 NavyBlue
Pre-Owned · Majestic
$30.00
Free shipping
Y+M^ II&* RF] w.P7? !|8/ $
Oakland Athletics Vida Blue jersey lapel pin-Classic Retro Collectible
Brand New
$9.99
or Best Offer
Free shipping
0+^N &DT* ]E9 w. ?!T|/ 6$
Alphonso Soriano #12 Chicago Cubs TrueFan MLB Jersey Youth Large children L
Pre-Owned
$44.99
or Best Offer
Free shipping
M+^ &* ] Jw.? !VX |MJ/ 7$S p o n s o r e d
Milwaukee Brewers #28 Prince Fielder Majestic Youth Jersey Size 10/12 Stitched
Pre-Owned · Majestic
$24.99
or Best Offer
$6.30 shipping
+^ &*2 D ]4 wY .D?!|/Z $YW S p o n s o r e d
Infant Toronto Blue Jays Bo Bichette Powder Blue Replica Player Jersey
Brand New
$57.74
$5.77 shipping
+^ 8&O A* ]T w.A?S! 1G ZP |/ $S p o n s o r e d
Majestic New York Mets Toddler Baby Baseball BP Jersey Size 12 Months
Pre-Owned · Majestic
$18.00
or Best Offer
$5.35 shipping
XN+^ Y8& Z*M ] w .?6!|5/ 6$S p o n s o r e d
Oakland Athletics Vida Blue jersey lapel pin-Classic RETRO Collectible
Brand New
$9.99
or Best Offer
Free shipping
ZA+^ 6 &* Q L8 ]6 T w.?!|/ $
Boston Red Sox MLB Youth Boys Button-up Devers #11 Navy T-Shirts Jerseys: 4-14
Brand New
$25.99
Free shipping
+C^ &C* ]0Y w .L?D Y!|/ $
New Era USA Jersey Logo Baseball Hat 7 1/2 NWT
Brand New · New Era
$99.99
or Best Offer
$7.00 shipping
+BN P^ M&* G P 2E] w.?! 3|T/ $
MLB Minnesota Twins Infant Boy's Pullover Team Jersey in Navy, 12 Months
Brand New
$19.99
Was: $24.99was - US $24.99
Free shipping
6+^N &* C]2 1 8w. ?UB !Z|/ $
Minnesota Twins Toddler 12 months Baseball Jersey Shirt Blue Plain back GM
Pre-Owned
$15.99
$4.75 shipping
M+^ &Q Q*U ]O Cw .?AD!| / $
MLB Minnesota Twins Toddler Boy's Size 12 Months Short Sleeve Team Jersey Blue
Brand New
$16.00
Free shipping
+M^ G& PE* N] A w.G?Z !|/H $
Infant Toronto Blue Jays Vladimir Guerrero Jr Powder Blue Replica Player Jersey
Brand New
$59.19
$5.77 shipping
1 watching
+V^ B& * 6D] FQ w W.?7! H7| / $S p o n s o r e d
Infant Toronto Blue Jays MLB Baseball Royal Blue Official Jersey Romper Pullover
Brand New
$54.13
$5.77 shipping
3 watching
DL +^M &* ]Z w .?O!|/ M $YS p o n s o r e d
Detroit Tigers Cabrera #24 MLB Genuine Merchandise Sport Jersey Youth L 12/14
$32.99
$6.15 shipping
+^ QK&* ] wT7.? P!|/ P W$
NEW * Vintage Majestic New York Mets David Wright #5 Baseball MLB Jersey * YOUTH
Brand New · Majestic
$44.99
$6.99 shipping
+^ &*9G 4]W Z0 w2.?!A| / $
Cubs Jersey YOUTH Size 10/12 MAJESTIC Blue Marlon Byrd Genuine Merchandise #24
Pre-Owned · Majestic
$29.95
or Best Offer
$6.00 shipping
+N3^ A J &B0 J* Q] w. ?K!|/ $
MAJESTIC Milwaukee Brewers Rickie Weeks #23 Stitched Jersey Youth Sz. 10/12
Pre-Owned · Majestic
$21.95
$6.47 shipping
+9Z T^ Y&* ] XK L3w.? !|/ $
Daniel Murphy Washington Nationals Youth Size XL Blue Baseball Jersey
Pre-Owned
$34.89
Free shipping
DD +B^F 6&G* ]6 7w .B?!|/ $
Los Angeles Dodgers Matt Kemp jersey lapel pin-Classic TRUE BLUE Collectable
Brand New
$9.99
or Best Offer
Free shipping
3+^N C &*Q ] w 9.V UK? !|/1K $
MLB Chicago Cubs Girls Pinstripe Blue Team V-Neck Jersey Large 10/12
Brand New
$14.95
Free shipping
+2^ 2& 9*1 ]D 2 w.?!VR| / $
Mariners Nelson Cruz Size 12 - 14 Large Jersey Baseball
$21.80
or Best Offer
$4.57 shipping
M+^ &* ]J w.?!0L| CI/ D$1
Michael Cuddyer Minnesota Twins #5 Majestic Blue Sewn Jersey Youth Size 10-12
Pre-Owned · Majestic
$14.99
or Best Offer
$5.21 shipping
+^ &* ] Gw.F?!|/ J $1
100% Authentic New York Yankees Jersey Genuine Merchandise Youth Large 10/12
$24.99
$9.99 shipping
+U^ X& *C ] 8w .F?!|/S $ 1
Majestic MLB Toronto Blue Jays Josh Donaldson Baseball Jersey Stitched Kids 12M
Pre-Owned · Majestic
$34.99
or Best Offer
Free shipping
+^3T &* FV] w.?JF! |0C/ DK $
Boston Red Sox MLB Baby Toddler Jersey Blue Size 12 Months 12M
Pre-Owned
$14.99
Was: $19.99was - US $19.99
$4.99 shipping
+^ &* SS] w. 6?Y 68! XK|/ $
NEW MLB Boston Red Sox Logo S/S True Fan V-Neck Jersey Shirt Top TODDLER Sz 2T
Brand New
$12.99
$6.55 shipping
+^ &* T]2 G B w.?!|6S /U8 $
MLB Tampa Bay Rays Jersey Infant Size 12 Months
Brand New · Nike
$38.99
$6.85 shipping
7T +^ &*C L] 2Hw 3.?!|Q/ $
San Francisco Giants Vida Blue jersey lapel pin-Classic RETRO Collectable
Brand New
$9.99
or Best Offer
Free shipping
19+ ^ AX &6J * ] JwB .?!BL |/ $
Minnesota Twins Baby Toddler 12 months Baseball Jersey stitched Blue Plain back
Pre-Owned
$18.99
or Best Offer
$5.75 shipping
L+8^ &* RH ] 6wW.? !|/55 $
Tampa Bay Rays MLB Toddler V-Neck Blue Logo Jersey Shirt - NWT
Brand New
$19.99
$5.50 shipping
9D +^ &D* ]J w. ?!|XK/ $ 6
UPPER DECK JERSEY NUMBERS LOU GEHRIG #4 [14 OF ONLY 100] FRAMED 21" X 16" 1/2!!
Pre-Owned · Upper Deck
$99.99
or Best Offer
Free shipping
+^ D&M* ] UwP.? !D4 |/ L$C
NEW YORK (GO)YANKEES YOUTH JERSEY DRK BLUE SIZE 10/12 GREAT CONDITION AS IS
Pre-Owned
$17.95
or Best Offer
$6.84 shipping
J+E^ &* ] D1w.? !7Z |/ $S p o n s o r e d
Milwaukee Brewers Prince Fielder 28 Majestic Youth Jersey Size 10/12 Stitched
Pre-Owned · Majestic
$19.97
or Best Offer
$6.20 shipping
+^2 &* C X] 3w I1. G?X! |/W $S p o n s o r e d

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Blue 12 Size MLB Jerseys

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137 Results

Chicago Cubs Blue Jersey Youth Shirt Size 10/12 Genuine Merchandise Sports

Vintage Majestic BOSTON RED SOX Infant Baby Team JERSEY 12M 12 Months Cotton

Matt Kemp #27 Los Angeles Dodgers Cooperstown Majestic Jersey Youth 10/12 MLB

Jason Giambi #25 New York Yankees Russell Youth Jersey Sz 10/12 Preowned

Philadelphia Phillies Majestic Powder Blue Baseball Youth Jersey SZ Medium 10/12

Chicago Cubs MLB Toddler Boy's Pullover Jersey CHOOSE SIZE

Detroit Tigers Medium Youth Jersey Size M 10/12

Atlanta Braves MLB Toddler V-Neck Blue Logo Jersey Shirt - NWT

Oakland Athletics Vida Blue jersey lapel pin-RETRO Collectible-FREE SHIP

100% Authentic Nike MLB New York Mets Blank Jersey Size 12 Months Infant

Boston Red Sox MLB Toddler Boys Short Sleeves Team Navy T-Shirts Jerseys: 12M-4T

Infant & Toddler Girls MLB Minnesota Twins 2-Piece Cheer Set New Pick Size

Detroit Tigers Cabrera #24 MLB Genuine Merchandise Sport Jersey Youth L (10/12)

Kids Toronto Blue Jays 2024 City Connect Limited Blank Navy Jersey 4 Size Group

Kids Toronto Blue Jays Vladimir Guerrero Jr. Navy 2024 City Connect Jersey MLB

Boys Nike Houston Astros Alex Bregman Rainbow Baseball Jersey Size MED 10/12

Vtg Mighty Mac Chicago Cubs Jersey Blue Youth Size 10/12 Medium 90s Button-up

Nike Bo Bichette Toronto Blue Jays Jersey Baseball MLB Youth Boy M Medium 10/12

Francisco Lindor New York Mets Nike Jersey 12 MLB Size XL Blue

Los Angeles Dodgers Will Smith jersey lapel pin-Classic TRUE BLUE Collectable

Cleveland Shane Bieber #57 Youth Jersey Size 10/12

Minnesota Twins Toddler 12 months Baseball Jersey stitched Blue Plain back GM TA

Josh Donaldson #20 Toronto Blue Jays Majestic Cool Base Jersey Youth M 10-12-EXC

Milwaukee Brewers MLB Toddler Boy's Pullover Jersey CHOOSE SIZE

Detroit Tigers Baby Toddler 12 months BASEBALL Sleeper MLB Footie Zippy

Chicago Cubs MLB Jersey Baby Size 12 Months 12M

Prince Fielder #28 Detroit Tigers Majestic Baseball Jersey Youth 10/12 NavyBlue

Oakland Athletics Vida Blue jersey lapel pin-Classic Retro Collectible

Alphonso Soriano #12 Chicago Cubs TrueFan MLB Jersey Youth Large children L

Milwaukee Brewers #28 Prince Fielder Majestic Youth Jersey Size 10/12 Stitched

Infant Toronto Blue Jays Bo Bichette Powder Blue Replica Player Jersey

Majestic New York Mets Toddler Baby Baseball BP Jersey Size 12 Months

Oakland Athletics Vida Blue jersey lapel pin-Classic RETRO Collectible

Boston Red Sox MLB Youth Boys Button-up Devers #11 Navy T-Shirts Jerseys: 4-14

New Era USA Jersey Logo Baseball Hat 7 1/2 NWT

MLB Minnesota Twins Infant Boy's Pullover Team Jersey in Navy, 12 Months

Minnesota Twins Toddler 12 months Baseball Jersey Shirt Blue Plain back GM

MLB Minnesota Twins Toddler Boy's Size 12 Months Short Sleeve Team Jersey Blue

Infant Toronto Blue Jays Vladimir Guerrero Jr Powder Blue Replica Player Jersey

Infant Toronto Blue Jays MLB Baseball Royal Blue Official Jersey Romper Pullover

Detroit Tigers Cabrera #24 MLB Genuine Merchandise Sport Jersey Youth L 12/14

NEW * Vintage Majestic New York Mets David Wright #5 Baseball MLB Jersey * YOUTH

Cubs Jersey YOUTH Size 10/12 MAJESTIC Blue Marlon Byrd Genuine Merchandise #24

MAJESTIC Milwaukee Brewers Rickie Weeks #23 Stitched Jersey Youth Sz. 10/12

Daniel Murphy Washington Nationals Youth Size XL Blue Baseball Jersey

Los Angeles Dodgers Matt Kemp jersey lapel pin-Classic TRUE BLUE Collectable

MLB Chicago Cubs Girls Pinstripe Blue Team V-Neck Jersey Large 10/12

Mariners Nelson Cruz Size 12 - 14 Large Jersey Baseball

Michael Cuddyer Minnesota Twins #5 Majestic Blue Sewn Jersey Youth Size 10-12

100% Authentic New York Yankees Jersey Genuine Merchandise Youth Large 10/12

Majestic MLB Toronto Blue Jays Josh Donaldson Baseball Jersey Stitched Kids 12M

Boston Red Sox MLB Baby Toddler Jersey Blue Size 12 Months 12M

NEW MLB Boston Red Sox Logo S/S True Fan V-Neck Jersey Shirt Top TODDLER Sz 2T

MLB Tampa Bay Rays Jersey Infant Size 12 Months

San Francisco Giants Vida Blue jersey lapel pin-Classic RETRO Collectable

Minnesota Twins Baby Toddler 12 months Baseball Jersey stitched Blue Plain back

Tampa Bay Rays MLB Toddler V-Neck Blue Logo Jersey Shirt - NWT

UPPER DECK JERSEY NUMBERS LOU GEHRIG #4 [14 OF ONLY 100] FRAMED 21" X 16" 1/2!!

NEW YORK (GO)YANKEES YOUTH JERSEY DRK BLUE SIZE 10/12 GREAT CONDITION AS IS

Milwaukee Brewers Prince Fielder 28 Majestic Youth Jersey Size 10/12 Stitched

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