🔥 Free Worldwide Shipping on Orders Over $69

⏱️ 30-Day Return Window & Dedicated 24-Hour Support
Jayson Tatum Boston Celtics Youth 2025/26 City Edition Fast Break Jersey White - front and back view
Jayson Tatum Boston Celtics Youth 2025/26 City Edition Fast Break Jersey White - front view
Jayson Tatum Boston Celtics Youth 2025/26 City Edition Fast Break Jersey White - back view
  • Jayson Tatum Boston Celtics Youth 2025/26 City Edition Fast Break Jersey White - front and back view
  • Jayson Tatum Boston Celtics Youth 2025/26 City Edition Fast Break Jersey White - front view
  • Jayson Tatum Boston Celtics Youth 2025/26 City Edition Fast Break Jersey White - back view
1 / 3

Jayson Tatum Boston Celtics Youth 2025/26 City Edition Fast Break Jersey White

$39.90 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.
Quantity
Guaranteed Safe & Secure Checkout
Secure Payment Methods
SSL Secure
DDP Included
Top Grade
Logistics & Issues
Description

A first Boston Celtics jersey, or the next one in the collection — light enough for a warm afternoon and sturdy enough for a full term.

Some jerseys are for the shelf. This one is for the schedule — the midweek games, the back-to-backs, the evenings where the result matters more than the plans. It reads as Boston Celtics from across the room and as Jayson Tatum up close. Recycled polyester with a wicking finish: drier than cotton, quicker to dry, easier to keep looking new.

The material is 100% recycled polyester, and the wicking finish does the heavy lifting on warm evenings. V-neck, taped and tagless: nothing to itch, nothing to cut out. It is the rare piece of fan gear that does not feel like a costume — which is why it gets worn so often. It is the kind of shirt that ends up photographed more than most — worth knowing before you pick the colour. It is the kind of shirt that gets borrowed — worth knowing before you buy one for somebody else.

The essentials

  • TeamBoston Celtics
  • PlayerJayson Tatum
  • RangeYouth
  • ColourWhite
  • Season2025/26
  • ConferenceEastern

What parents like about it

  • Made for daily wearDesigned for the kid who puts it on the moment it is clean.
  • Matches the grown-upsSame colours as the adult range, so family photos line up.
  • Easy to hand downDurable enough to survive one owner and look after the next.
  • Lettering that matchesName and number are produced in the same finish as the rest of the graphics.

Questions, answered

Can I order more than one with different names?

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

Will it fit next season?

The cut leaves a little room, so it typically lasts through more than a season of growth.

Can I see the lettering before it ships?

The lettering follows the details entered at checkout, produced in the same finish as the team graphics.

Is it warm enough for winter?

On its own it is a summer-weight shirt; over a long-sleeve tee it works through the colder months.

Customers Also Bought

Recently viewed