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Jaxon Smith-Njigba Seattle Seahawks Newborn Romper Game Jersey - Navy

0-3M-0-3-MO-YB7844
From 4 interest-free payments of $39.78 with Klarna
From 4 interest-free payments of $39.78 with Klarna
$42.90 USD
$59.90 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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Jaxon Smith-Njigba Seattle Seahawks Newborn Romper Game Jersey - Navy

From first whistle to final play, Seattle Seahawks games are emotional rollercoasters. This jersey is built for every second of them — and everything after.

The Story

This one leans into what fans actually want — the team look, comfortable feel, and a price that makes sense.

01
Comfort That Lasts All MatchdayA breathable knit that balances stretch and structure, moving with you instead of against you.
02
This Season’s LookThis this season version keeps the look current while staying true to what fans love about Seattle Seahawks.
03
A Fit for Real FansA no-fuss silhouette that fits true to size for most fans, with a little extra length so it stays tucked-free.
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: Start their fandom from day one with this Jaxon Smith-Njigba Seattle Seahawks Romper Jersey from . Practical four-snap bottom and two-snap shoulder closures make for quick and easy changes, keeping your little one comfortable through all four quarters.

Wear It

Pack it for away trips — nothing beats spotting a fellow Seattle Seahawks fan in a foreign city. 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: fan-version game-day jersey with the matchday look of Seattle Seahawks.
  • Fit: 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

What you see is what you get — clear photos, honest sizing, and a fan version described exactly as it is. Ordering is simple and secure. If anything needs a second look, email us at jerseyhelp@hotmail.com and we'll sort it out.

A little care goes a long way — cold wash, air dry, and this jersey stays game-day ready for years.

Need help? Email jerseyhelp@hotmail.com

Is this the same cut as the on-field jersey?

It's the fan version of the on-field look — the same team identity with a more relaxed, everyday cut instead of the pro locker-room fit.

What's the fabric weight like?

It's on the lighter side — breathable and easy to pack for travel, while still feeling substantial enough for cooler evenings over a layer.

Is this jersey true to size?

It follows standard US sizing. If you like a relaxed fit or want room to layer, most fans go one size up. The size chart on the product page lists exact measurements.

Add it to your cart and wear your colors with pride this season.

Jaxon Smith-Njigba Seattle Seahawks Newborn Romper Game Jersey - Navy

From first whistle to final play, Seattle Seahawks games are emotional rollercoasters. This jersey is built for every second of them — and everything after.

The Story

This one leans into what fans actually want — the team look, comfortable feel, and a price that makes sense.

01
Comfort That Lasts All MatchdayA breathable knit that balances stretch and structure, moving with you instead of against you.
02
This Season’s LookThis this season version keeps the look current while staying true to what fans love about Seattle Seahawks.
03
A Fit for Real FansA no-fuss silhouette that fits true to size for most fans, with a little extra length so it stays tucked-free.
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: Start their fandom from day one with this Jaxon Smith-Njigba Seattle Seahawks Romper Jersey from . Practical four-snap bottom and two-snap shoulder closures make for quick and easy changes, keeping your little one comfortable through all four quarters.

Wear It

Pack it for away trips — nothing beats spotting a fellow Seattle Seahawks fan in a foreign city. 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: fan-version game-day jersey with the matchday look of Seattle Seahawks.
  • Fit: 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

What you see is what you get — clear photos, honest sizing, and a fan version described exactly as it is. Ordering is simple and secure. If anything needs a second look, email us at jerseyhelp@hotmail.com and we'll sort it out.

A little care goes a long way — cold wash, air dry, and this jersey stays game-day ready for years.

Need help? Email jerseyhelp@hotmail.com

Is this the same cut as the on-field jersey?

It's the fan version of the on-field look — the same team identity with a more relaxed, everyday cut instead of the pro locker-room fit.

What's the fabric weight like?

It's on the lighter side — breathable and easy to pack for travel, while still feeling substantial enough for cooler evenings over a layer.

Is this jersey true to size?

It follows standard US sizing. If you like a relaxed fit or want room to layer, most fans go one size up. The size chart on the product page lists exact measurements.

Add it to your cart and wear your colors with pride this season.

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