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Nick Bosa San Francisco 49ers Legend Player Performance Top - Scarlet

XS-CHEST-31-5-35IN-KX5580
From 4 interest-free payments of $39.78 with Klarna
From 4 interest-free payments of $39.78 with Klarna
$68.99 USD
$89.99 USD
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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 Legend Player Performance Top - Scarlet

Some fans watch the game. True fans live it. Wearing San Francisco 49Ers's Scarlet fan pre-match top is how you show which side of the line you stand on.

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 MatchdayLightweight, breathable fabric keeps air moving on warm afternoons, whether you're in the stands or pacing the living room through extra time.
02
A Fit for Real FansRelaxed through the body with clean lines, so it layers neatly over a tee or under a hoodie when the evening cools off.
03
Built to Hold UpAttention to the small stuff — even stitching, smooth collar line, and a print that doesn't crack after a few wears.
04
Style That Reads from the Parking LotA classic look that won't date — clean colors, recognizable team markings, nothing fussy.
05
This Season’s LookThis this season version keeps the look current while staying true to what fans love about San Francisco 49Ers.
Design notes: Rep your favorite San Francisco 49ers player comfortably in this Nick Bosa Legend Player Performance Top by . Engineered with Dri-FIT® technology, it wicks away moisture to keep you cool and dry, whether you're cheering from the stands or out and about.

Wear It

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

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

The Details

  • Style: fan-ready pre-match top in San Francisco 49Ers colors.
  • 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

Every size option is listed on the product page, so you can pick with confidence before checkout. What you see is what you get — clear photos, honest sizing, and a fan version described exactly as it is.

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

Need help? Email jerseyhelp@hotmail.com

Is this the same cut as the on-field pre-match top?

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 if my order arrives with an issue?

Contact us within 7 days of receiving your order with your order info and photos if needed — we'll investigate and work out a replacement or resolution.

How do I choose the right size?

Check the size chart on the product page — chest width is the best guide. When in doubt, most fans size up for a relaxed, game-day fit.

Is this pre-match top 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.

Nick Bosa San Francisco 49ers Legend Player Performance Top - Scarlet

Some fans watch the game. True fans live it. Wearing San Francisco 49Ers's Scarlet fan pre-match top is how you show which side of the line you stand on.

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 MatchdayLightweight, breathable fabric keeps air moving on warm afternoons, whether you're in the stands or pacing the living room through extra time.
02
A Fit for Real FansRelaxed through the body with clean lines, so it layers neatly over a tee or under a hoodie when the evening cools off.
03
Built to Hold UpAttention to the small stuff — even stitching, smooth collar line, and a print that doesn't crack after a few wears.
04
Style That Reads from the Parking LotA classic look that won't date — clean colors, recognizable team markings, nothing fussy.
05
This Season’s LookThis this season version keeps the look current while staying true to what fans love about San Francisco 49Ers.
Design notes: Rep your favorite San Francisco 49ers player comfortably in this Nick Bosa Legend Player Performance Top by . Engineered with Dri-FIT® technology, it wicks away moisture to keep you cool and dry, whether you're cheering from the stands or out and about.

Wear It

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

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

The Details

  • Style: fan-ready pre-match top in San Francisco 49Ers colors.
  • 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

Every size option is listed on the product page, so you can pick with confidence before checkout. What you see is what you get — clear photos, honest sizing, and a fan version described exactly as it is.

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

Need help? Email jerseyhelp@hotmail.com

Is this the same cut as the on-field pre-match top?

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 if my order arrives with an issue?

Contact us within 7 days of receiving your order with your order info and photos if needed — we'll investigate and work out a replacement or resolution.

How do I choose the right size?

Check the size chart on the product page — chest width is the best guide. When in doubt, most fans size up for a relaxed, game-day fit.

Is this pre-match top 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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