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Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition
Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition
Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition
Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition
  • Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition
  • Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition
  • Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition
  • Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition
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Youth Oklahoma City Thunder Isaiah Hartenstein Blue Fast Break Replica Player Jersey - Icon Edition

$36.80 USD
$59.90 USD
Shipping fees will be calculated at checkout.
Size

Size Guide

Everything below is the garment measured flat, not your body. Chest is the full width from armpit seam to armpit seam; length runs from the highest shoulder point down to the hem. Fastest way to get it right: take a jersey that fits you well, measure it the same way, and match the numbers.

Men's / Unisex Big & Tall Authentic (numbered) Youth Preschool / Toddler Women's
Diagram: measure straight across the chest from armpit seam to armpit seam, and from the top of the shoulder down to the hem
ChestLay the jersey flat and measure straight across, from one armpit seam to the other. That full width is the number in the chart - so a chart reading of 44 in means the shirt measures 44 in across, not a 44 in body.
LengthFrom the highest point of the shoulder straight down to the bottom hem, with the jersey laid flat and smoothed out.

Men's / Unisex Jerseys

XS - 5XL

The default cut for most of the store. Loose through the body by design, with a straight hem.

Size Chest (in) Length (in) Chest (cm) Length (cm)
XS 34-36 26 86-91 66
S 38-40 27 97-102 69
M 40-42 28 102-107 71
L 42-44 29 107-112 74
XL 44-46 30 112-117 76
XXL 46-49 31 117-124 79
3XL 49-52 32 124-132 81
4XL 52-56 33 132-142 84
5XL 56-60 34 142-152 86

Big & Tall

1XB - 6XB / XLT - 6XT

Two different things: B sizes add width, T sizes keep the width and add 2-3 in of length. Both are cut from the same shoulders down.

Size Type Chest (in) Length (in) Chest (cm) Length (cm)
1XB Big 46-48 31 117-122 79
2XB Big 50-52 32 127-132 81
3XB Big 54-56 32 137-142 81
4XB Big 58-60 33 147-152 84
5XB Big 62-64 33 157-163 84
6XB Big 66-68 34 168-173 86
MT Tall 40-42 31 102-107 79
LT Tall 42-44 32 107-112 81
XLT Tall 44-46 33 112-117 84
2XT Tall 46-49 34 117-124 86
3XT Tall 49-52 35 124-132 89
4XT Tall 52-56 36 132-142 91
5XT Tall 56-60 37 142-152 94
6XT Tall 60-64 38 152-163 97

Authentic - Numbered Sizing

36 - 64

Some Authentic styles are sold by number instead of letter. The number is the chest width in inches - so a size 48 measures 48 in across. Use the letter column to translate your usual size.

Number Equals Chest (in) Length (in) Chest (cm) Length (cm)
36 XS 36 29 91 74
40 S 40 30 102 76
44 M 44 31 112 79
48 L 48 32 122 81
52 XL 52 33 132 84
56 XXL 56 34 142 86
58 XXL+ 58 34 147 86
60 3XL 60 35 152 89
64 4XL 64 36 163 91

Youth Jerseys

S - XL

Cut in the same shape as the adult shirts, just scaled down. Age is a guide only - chest measurement is the reliable one.

Size Age Chest (in) Length (in) Chest (cm) Length (cm)
S 7-8 yrs 28-30 21 71-76 53
M 9-10 yrs 30-32 23 76-81 58
L 11-12 yrs 32-34 25 81-86 64
XL 13-14 yrs 34-36 26 86-91 66

Preschool & Toddler

2T - 7 / 12M - 24M

Worded by age rather than letter on purpose - this is the range where children grow fastest, so measure a shirt that fits today and match the chest.

Size Age Chest (in) Length (in) Chest (cm) Length (cm)
12M 12-18 mo 18-19 13 46-48 33
18M 18-24 mo 19-20 14 48-51 36
24M 2 yrs 20-21 15 51-53 38
2T 2-3 yrs 20-21 15 51-53 38
3T 3-4 yrs 21-22 17 53-56 43
4T 4-5 yrs 22-23 18 56-58 46
5-6 5-6 yrs 23-25 19 58-64 48
7 7 yrs 25-26 20 64-66 51

Women's Jerseys

W-XS - W-4XL

Listed with a W- prefix so they are easy to spot in the size selector. Narrower through the shoulder and waist than the unisex cut.

Size Chest (in) Length (in) Chest (cm) Length (cm)
W-XS 32-34 25 81-86 64
W-S 34-36 26 86-91 66
W-M 36-38 27 91-97 69
W-L 38-40 27 97-102 69
W-XL 40-42 28 102-107 71
W-XXL 42-45 28 107-114 71
W-3XL 45-48 29 114-122 74
W-4XL 48-51 29 122-130 74
01
Cut for comfort

Basketball jerseys are meant to hang loose. If you want a regular, closer fit, order one size below your usual.

02
Between sizes?

Go up. The extra room is how the cut is designed to be worn, and it layers over a hoodie in winter without pulling.

03
Compare, don't guess

Match the numbers to a shirt you already own rather than to your body. Printed names and numbers on the back do not change the fit.

Numbers are taken flat and can vary by roughly 1 in / 2 cm between styles, and Youth overlaps Preschool at age 7 - in that case Youth S is the slightly longer of the two. Still unsure? Contact us with your height, usual size and the jersey you are looking at, and we will tell you which one to take.
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Description

Oklahoma City Thunder Blue, youth proportions, Isaiah Hartenstein’s name and number — easy on small shoulders, all season long.

Game days, watch parties, and the ordinary weekdays in between: this is the layer that handles all three. The Blue front carries the Oklahoma City Thunder look, with Isaiah Hartenstein’s name and number where they belong. Everything on the shirt — front marks, name, number — is applied in layers and pressed down properly.

The body is 100% recycled polyester with a wicking finish, so it stays drier than a cotton tee ever manages. Inside: taping instead of a label. Outside: a clean V-neck that layers under a jacket without a ridge. It is as believable at a birthday as it is at a tip-off, which is exactly what you want from a jersey. Nothing about it is precious — which is exactly why it ends up worn the most. It arrives ready to wear — no odd smell, no stiff finish, no first-wash surprise.

Specs, briefly

  • TeamOklahoma City Thunder
  • PlayerIsaiah Hartenstein
  • RangeYouth
  • ColourBlue
  • BuildSealed graphics on 170 gsm mesh
  • BuildSealed graphics on 170 gsm mesh

Why families come back to it

  • Light on small shouldersKeeps it wearable from September bleachers to June driveways.
  • School-day toughHandles the daily wear a favourite shirt gets without complaint.
  • Made for daily wearDesigned for the kid who puts it on the moment it is clean.

Worth knowing

Can I order more than one with different names?

Yes — each personalised piece is produced separately, so different names and numbers are fine.

Does the lettering match the team design?

It is produced in the same finish and colour-matched to the graphics already on the shirt.

Is the fabric different from the adult shirt?

It is the same recycled polyester knit — the most forgiving weight for school days and weekends.

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