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Nick Bosa San Francisco 49ers 2025 Rivalries Collection Stitched Limited Jersey - Black

XS-CHEST-31-5-35IN-LT1290
From 4 interest-free payments of $39.78 with Klarna
From 4 interest-free payments of $39.78 with Klarna
$79.99 USD
$112.99 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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Nick Bosa San Francisco 49ers 2025 Rivalries Collection Stitched Limited Jersey - Black

Every NFL season writes a new story, and San Francisco 49Ers fans know better than anyone how quickly legends are made. Be part of it in this 2025 matchday look.

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 MatchdayA breathable knit that balances stretch and structure, moving with you instead of against you.
02
This Season’s LookThis 2025 version keeps the look current while staying true to what fans love about San Francisco 49Ers.
03
A Fit for Real FansSized with everyday wear in mind — generous through the torso without looking baggy.
04
Built to Hold UpClean team markings, tidy stitching at the seams, and a collar that holds its shape wash after wash.
05
Style That Reads from the Parking LotA classic look that won't date — clean colors, recognizable team markings, nothing fussy.
Design notes: This San Francisco 49ers 2025 Rivalries Collection Limited Jersey from is an ode to a fanbase that moves more like family. An all-black base, saloon-style numbers and gold accents make the franchise's rich history shine for an authentic-style touch on game day.

Wear It

From the tailgate to the grocery store, it quietly announces your allegiance without saying a word. Pairs as easily with jeans and sneakers as it does with face paint and flags.

Birthday coming up? This is the gift that gets worn all year instead of sitting in a drawer.

The Details

  • Style: limited-style premium fan jersey with the matchday look of San Francisco 49Ers.
  • Fit: men's sizing; check the size chart for exact chest measurements.

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

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

What's the best size for a layered NFL look?

NFL fan jerseys follow standard US sizing; most fans go one size up when they plan to layer over a hoodie.

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.

Does it have the team crest and markings?

Yes — it features the team's crest and color markings front and center, so your allegiance is clear from any angle.

Is payment secure on this site?

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

Show up, stand out, cheer loud — this San Francisco 49Ers jersey is one click away.

Nick Bosa San Francisco 49ers 2025 Rivalries Collection Stitched Limited Jersey - Black

Every NFL season writes a new story, and San Francisco 49Ers fans know better than anyone how quickly legends are made. Be part of it in this 2025 matchday look.

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 MatchdayA breathable knit that balances stretch and structure, moving with you instead of against you.
02
This Season’s LookThis 2025 version keeps the look current while staying true to what fans love about San Francisco 49Ers.
03
A Fit for Real FansSized with everyday wear in mind — generous through the torso without looking baggy.
04
Built to Hold UpClean team markings, tidy stitching at the seams, and a collar that holds its shape wash after wash.
05
Style That Reads from the Parking LotA classic look that won't date — clean colors, recognizable team markings, nothing fussy.
Design notes: This San Francisco 49ers 2025 Rivalries Collection Limited Jersey from is an ode to a fanbase that moves more like family. An all-black base, saloon-style numbers and gold accents make the franchise's rich history shine for an authentic-style touch on game day.

Wear It

From the tailgate to the grocery store, it quietly announces your allegiance without saying a word. Pairs as easily with jeans and sneakers as it does with face paint and flags.

Birthday coming up? This is the gift that gets worn all year instead of sitting in a drawer.

The Details

  • Style: limited-style premium fan jersey with the matchday look of San Francisco 49Ers.
  • Fit: men's sizing; check the size chart for exact chest measurements.

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

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

What's the best size for a layered NFL look?

NFL fan jerseys follow standard US sizing; most fans go one size up when they plan to layer over a hoodie.

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.

Does it have the team crest and markings?

Yes — it features the team's crest and color markings front and center, so your allegiance is clear from any angle.

Is payment secure on this site?

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

Show up, stand out, cheer loud — this San Francisco 49Ers jersey is one click away.

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