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Jaylen Brown Boston Celtics Youth Fast Break Replica Player Jersey - Icon Edition - Kelly Green

S-AGE-8-10-FT4645
From 4 interest-free payments of $39.78 with Klarna
From 4 interest-free payments of $39.78 with Klarna
$39.90 USD
$65.77 USD
Shipping fees will be calculated at checkout.
Size

Size Guide

 

Sports Fan Gear Size Guide

Standard Measurement Matrix

Find Your Perfect Jersey Fit

Get the ideal fit for every sports fan in your family. All parameters for our NFL, NBA, MLB, NHL, and 2026 World Cup soccer jerseys are detailed in both metric (cm) and imperial (in) standards below.

Baby (0-24M) Kids (2-12Y) Youth (8-16Y) Women's Tops Men's Tops Shorts

Baby Size Guide (0-24 Months)

Designed for newborns to toddlers.

Size Label Age Height (cm) Height (in) Weight (kg) Weight (lbs)
Newborn 0 - 1 month 50 - 56 cm 19.5 - 22" 3 - 5 kg 7 - 11 lbs
0 - 3M 0 - 3 months 56 - 62 cm 22 - 24.5" 5 - 7 kg 11 - 15.5 lbs
3 - 6M 3 - 6 months 62 - 68 cm 24.5 - 27" 7 - 8.5 kg 15.5 - 19 lbs
6 - 9M 6 - 9 months 68 - 74 cm 27 - 29" 8.5 - 9.5 kg 19 - 21 lbs
9 - 12M 9 - 12 months 74 - 80 cm 29 - 31.5" 9.5 - 11 kg 21 - 24 lbs
12 - 18M 12 - 18 months 80 - 86 cm 31.5 - 34" 11 - 12.5 kg 24 - 27.5 lbs
18 - 24M 18 - 24 months 86 - 92 cm 34 - 36" 12.5 - 14 kg 27.5 - 31 lbs

Kids Size Guide (2-12 Years)

Size Label Age Height (cm) Height (in) Chest (cm) Chest (in) Waist (cm) Waist (in)
2T 2 years 86 - 92 cm 34 - 36" 53 cm 21" 51 cm 20"
3T 3 years 92 - 98 cm 36 - 38.5" 55 cm 21.5" 52 cm 20.5"
4T 4 years 98 - 104 cm 38.5 - 41" 57 cm 22.5" 53 cm 21"
5 5 years 104 - 110 cm 41 - 43.5" 59 cm 23" 54 cm 21.5"
6 6 years 110 - 116 cm 43.5 - 45.5" 61 cm 24" 56 cm 22"
7 7 years 116 - 122 cm 45.5 - 48" 63 cm 25" 57 cm 22.5"
8 8 years 122 - 128 cm 48 - 50.5" 66 cm 26" 59 cm 23"
9 - 10 9 - 10 years 128 - 140 cm 50.5 - 55" 69 - 72 cm 27 - 28.5" 62 - 64 cm 24.5 - 25"
11 - 12 11 - 12 years 140 - 152 cm 55 - 60" 76 - 79 cm 30 - 31" 66 - 69 cm 26 - 27"

Youth Size Guide (8-16 Years)

Size Label Age Scale US Size Height (cm) Height (in) Chest (cm) Chest (in) Waist (cm) Waist (in)
XS 7 - 8 Yrs 7 122 - 128 cm 48 - 50" 64 - 67 cm 25 - 26.5" 57 - 59 cm 22.5 - 23"
S 8 - 10 Yrs 8 - 10 128 - 140 cm 50 - 55" 69 - 72 cm 27 - 28.5" 60 - 64 cm 23.5 - 25"
M 10 - 12 Yrs 10 - 12 140 - 152 cm 55 - 60" 74 - 77 cm 29 - 30.5" 65 - 69 cm 25.5 - 27"
L 12 - 14 Yrs 12 - 14 152 - 164 cm 60 - 64.5" 79 - 84 cm 31 - 33" 70 - 75 cm 27.5 - 29.5"
XL 14 - 16 Yrs 14 - 16 164 - 172 cm 64.5 - 68" 86 - 91 cm 34 - 36" 76 - 81 cm 30 - 32"

Women's Shirts & Tops

Size Label US Size UK Size EU Size Bust (cm) Bust (in) Waist (cm) Waist (in)
XS 0 - 2 4 - 6 32 - 34 81 - 84 cm 32 - 33" 61 - 64 cm 24 - 25"
S 4 - 6 8 - 10 36 - 38 86 - 89 cm 34 - 35" 66 - 69 cm 26 - 27"
M 8 - 10 12 - 14 40 - 42 91 - 94 cm 36 - 37" 71 - 74 cm 28 - 29"
L 12 - 14 16 - 18 44 - 46 99 - 102 cm 39 - 40" 79 - 82 cm 31 - 32"
XL 16 - 18 20 - 22 48 - 50 107 - 112 cm 42 - 44" 86 - 91 cm 34 - 36"
XXL 20 - 22 24 - 26 52 - 54 117 - 122 cm 46 - 48" 96 - 102 cm 38 - 40"

Men's Tops & Sports Jerseys

Size Label US Size UK Size EU Size Chest (cm) Chest (in) Waist (cm) Waist (in)
XS 34 34 44 86 - 89 cm 34 - 35" 71 - 74 cm 28 - 29"
S 36 36 46 91 - 94 cm 36 - 37" 76 - 79 cm 30 - 31"
M 38 - 40 38 - 40 48 - 50 96 - 102 cm 38 - 40" 81 - 86 cm 32 - 34"
L 42 42 52 107 - 112 cm 42 - 44" 89 - 94 cm 35 - 37"
XL 44 44 54 117 - 122 cm 46 - 48" 96 - 102 cm 38 - 40"
XXL 46 - 48 46 - 48 56 - 58 127 - 132 cm 50 - 52" 104 - 109 cm 41 - 43"
3XL 50 - 52 50 - 52 60 - 62 137 - 142 cm 54 - 56" 112 - 118 cm 44 - 46"

Shorts Size Guide

Men's Shorts

Size Waist (cm) Waist (in)
XS 71 - 74 cm 28 - 29"
S 76 - 81 cm 30 - 32"
M 84 - 89 cm 33 - 35"
L 91 - 97 cm 36 - 38"
XL 99 - 104 cm 39 - 41"
XXL 107 - 112 cm 42 - 44"

Women's Shorts

Size US Size Waist (cm) Waist (in)
XS 0 - 2 61 - 64 cm 24 - 25"
S 4 - 6 66 - 69 cm 26 - 27"
M 8 - 10 71 - 74 cm 28 - 29"
L 12 - 14 79 - 82 cm 31 - 32"
XL 16 - 18 86 - 91 cm 34 - 36"
Measurement Advice & Fitting Guidance:

Size charts serve as general fitting standards for SportsFanFit merchandise. Actual fits may slightly vary across NFL, NBA, MLB, and 2026 World Cup soccer jersey versions. If your measurements fall between two sizes, we recommend selecting the larger size for optimal athletic comfort. Need help? Contact us at jerseyhelp@hotmail.com.

 
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Jaylen Brown Boston Celtics Youth Fast Break Replica Player Jersey - Icon Edition - Kelly Green

There's a moment right before kickoff when the whole stadium holds its breath — and Boston Celtics colors take over the stands. This this season jersey is your ticket to that feeling, any day of the week.

The Story

Designed to echo the on-field look without the on-field price tag, it delivers the pro-style aesthetic in a relaxed everyday fit.

01
Comfort That Lasts All MatchdayLightweight, breathable fabric keeps air moving on warm afternoons, whether you're in the stands or pacing the living room through extra time.
02
Style That Reads from the Parking LotModern, streamlined, and unmistakably Boston Celtics — it reads from across the parking lot.
03
A Fit for Real FansSized for growing fans, with the same team look and detail as the adult version — room to move, built to play.
04
Built to Hold UpAttention to the small stuff — even stitching, smooth collar line, and a print that doesn't crack after a few wears.
Design notes: Gear your young fan up with this Jaylen Brown Boston Celtics Fast Break Icon Edition jersey from Prosportskit. This replica jersey boasts a more tailored fit for improved comfort and features lightweight, foldable trims for easy care.

Wear It

Game night, gym session, or a casual Friday at work — it fits the day, whatever the day brings. Pairs as easily with jeans and sneakers as it does with face paint and flags.

Whether it's Father's Day, a graduation, or just a 'thanks for being a fan' — this one lands.

The Details

  • Style: replica fan jersey with the matchday look of Boston Celtics.
  • Fit: youth sizing; check the size chart for exact chest measurements.

Check the size chart before ordering — a quick thirty seconds that saves an exchange.

Care & Questions

Ordering is simple and secure. If anything needs a second look, email us at jerseyhelp@hotmail.com and we'll sort it out. Every size option is listed on the product page, so you can pick with confidence before checkout.

Keep it fresh: machine wash cold, inside out, and skip the iron on printed areas.

Need help? Email jerseyhelp@hotmail.com

Will the printed details survive washing?

Machine wash cold, inside out, and air dry — the heat-sealed details are finished to hold up over time.

Is payment secure on this site?

Yes — checkout runs through secure payment processing, and your details are handled with standard industry protection.

Can I buy multiple sizes to compare?

You can place separate orders, but we recommend checking the size chart first — most fans land it right the first time.

What fabric is this made of?

It's a lightweight polyester-blend knit with a breathable, quick-drying feel — comfortable for warm days and easy to care for.

Make it yours today — pick your size, hit the checkout, and get ready for kickoff.

Jaylen Brown Boston Celtics Youth Fast Break Replica Player Jersey - Icon Edition - Kelly Green

There's a moment right before kickoff when the whole stadium holds its breath — and Boston Celtics colors take over the stands. This this season jersey is your ticket to that feeling, any day of the week.

The Story

Designed to echo the on-field look without the on-field price tag, it delivers the pro-style aesthetic in a relaxed everyday fit.

01
Comfort That Lasts All MatchdayLightweight, breathable fabric keeps air moving on warm afternoons, whether you're in the stands or pacing the living room through extra time.
02
Style That Reads from the Parking LotModern, streamlined, and unmistakably Boston Celtics — it reads from across the parking lot.
03
A Fit for Real FansSized for growing fans, with the same team look and detail as the adult version — room to move, built to play.
04
Built to Hold UpAttention to the small stuff — even stitching, smooth collar line, and a print that doesn't crack after a few wears.
Design notes: Gear your young fan up with this Jaylen Brown Boston Celtics Fast Break Icon Edition jersey from Prosportskit. This replica jersey boasts a more tailored fit for improved comfort and features lightweight, foldable trims for easy care.

Wear It

Game night, gym session, or a casual Friday at work — it fits the day, whatever the day brings. Pairs as easily with jeans and sneakers as it does with face paint and flags.

Whether it's Father's Day, a graduation, or just a 'thanks for being a fan' — this one lands.

The Details

  • Style: replica fan jersey with the matchday look of Boston Celtics.
  • Fit: youth sizing; check the size chart for exact chest measurements.

Check the size chart before ordering — a quick thirty seconds that saves an exchange.

Care & Questions

Ordering is simple and secure. If anything needs a second look, email us at jerseyhelp@hotmail.com and we'll sort it out. Every size option is listed on the product page, so you can pick with confidence before checkout.

Keep it fresh: machine wash cold, inside out, and skip the iron on printed areas.

Need help? Email jerseyhelp@hotmail.com

Will the printed details survive washing?

Machine wash cold, inside out, and air dry — the heat-sealed details are finished to hold up over time.

Is payment secure on this site?

Yes — checkout runs through secure payment processing, and your details are handled with standard industry protection.

Can I buy multiple sizes to compare?

You can place separate orders, but we recommend checking the size chart first — most fans land it right the first time.

What fabric is this made of?

It's a lightweight polyester-blend knit with a breathable, quick-drying feel — comfortable for warm days and easy to care for.

Make it yours today — pick your size, hit the checkout, and get ready for kickoff.

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