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#1 BYU Cougars Lightweight Baseball Jersey - Navy

XS-CHEST-31-5-35IN-PK8004
From 4 interest-free payments of $39.78 with Klarna
From 4 interest-free payments of $39.78 with Klarna
$59.99 USD
$79.99 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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#1 BYU Cougars Lightweight Baseball Jersey - Navy

Key Features

Comfort That Lasts All MatchdayQuick-drying weave made for long matchdays — comfortable from the tailgate to the final whistle.
A Fit for Real FansSized with everyday wear in mind — generous through the torso without looking baggy.
Built to Hold UpPrinted details are finished to survive the washing machine, not just the product photo.
This Season’s LookThe this season update brings the newest crest and design details of the current campaign.
What makes it stand out: As an avid BYU Cougars fan, you never miss a minute of the action. This Lightweight Baseball Jersey from is perfect for cheering your team to victory, whether you're watching from inside the stadium or at home.

How to Wear

Perfect for stadium Saturdays, sports-bar Sundays, and every watch party in between. 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.

Tech Specs

Style: replica fan jersey with the matchday look of Byu Cougars.
Fit: men's sizing; check the size chart for exact chest measurements.
Number: 1 — rep the look with the number on the chest.

When in doubt between two sizes, most fans size up for extra comfort over long matchdays.

FAQ

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? jerseyhelp@hotmail.com

Is this the stadium-style fan version?

It's a fan version of the college look — same colors and crest spirit, cut for everyday comfort at a fan-friendly price.

Is this the exact same jersey the players wear?

No — this is a fan version inspired by the team look. It shares the design spirit but is made for everyday comfort and budget-friendly fandom.

Does the print hold up on game days?

Yes — the markings are printed and finished to stay sharp through wear and regular washing.

Show up, stand out, cheer loud — this Byu Cougars jersey is one click away.

#1 BYU Cougars Lightweight Baseball Jersey - Navy

Key Features

Comfort That Lasts All MatchdayQuick-drying weave made for long matchdays — comfortable from the tailgate to the final whistle.
A Fit for Real FansSized with everyday wear in mind — generous through the torso without looking baggy.
Built to Hold UpPrinted details are finished to survive the washing machine, not just the product photo.
This Season’s LookThe this season update brings the newest crest and design details of the current campaign.
What makes it stand out: As an avid BYU Cougars fan, you never miss a minute of the action. This Lightweight Baseball Jersey from is perfect for cheering your team to victory, whether you're watching from inside the stadium or at home.

How to Wear

Perfect for stadium Saturdays, sports-bar Sundays, and every watch party in between. 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.

Tech Specs

Style: replica fan jersey with the matchday look of Byu Cougars.
Fit: men's sizing; check the size chart for exact chest measurements.
Number: 1 — rep the look with the number on the chest.

When in doubt between two sizes, most fans size up for extra comfort over long matchdays.

FAQ

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? jerseyhelp@hotmail.com

Is this the stadium-style fan version?

It's a fan version of the college look — same colors and crest spirit, cut for everyday comfort at a fan-friendly price.

Is this the exact same jersey the players wear?

No — this is a fan version inspired by the team look. It shares the design spirit but is made for everyday comfort and budget-friendly fandom.

Does the print hold up on game days?

Yes — the markings are printed and finished to stay sharp through wear and regular washing.

Show up, stand out, cheer loud — this Byu Cougars jersey is one click away.
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