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.
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.
Quantity
Chat with Us： jerseyhelp@hotmail.com.
Secure payments
30-day returns
Shipping & Returns
Free Shipping E77+ |30-Day Returns |Trusted by foothall fans in 50+ countries
Secure Checkout
We take security seriously. All transactions are encrypted and secure. We proudly accept American Express, JCB, Mastercard, and Visa.
Football · 2025-2026
Belgium 2025-2026 Away Concept Football Kit (Viper) (Mertens 14)
Belgium Football · 2025-2026 · Away · No. 14
Belgium 2025-2026 Away Concept Football Kit (Viper) (Mertens 14) is a fan version football shirt for the 2025-2026 season, produced for supporters in a breathable polyester build with a team colourway. It is a supporter-tier replica rather than a player-issue garment, so the fit runs true to standard sizing and the price stays accessible for everyday wear.
Belgium Football 2025-2026 away with Mertens 14 printing
Made for fans — see the size table below
Breathable polyester, team colour colourway
Custom name and number printing available at checkout
Ships worldwide from our football shirt store
Belgium Football · 2025-2026
There are current-season shirts, and then there are shirts that mean something. This Belgium Football kit from the 2025-2026 season carries Mertens (No. 14)'s name and number — the exact pairing that made that campaign worth remembering.
The Design
Football design is a language, and this shirt speaks it fluently. The 2025-2026 Belgium Football colorway, the era-correct typography on the back, the clean front — it is the kind of kit that looks considered from every angle.
Fit, Fabric & Details
A quick note on versions: this is the supporter's cut of the kit. Same colors, same crest, same name and number as the on-pitch design, with a relaxed fit that makes it wearable seven days a week rather than ninety minutes.
Product Specification
Condition
Brand new with tags
Team
Belgium Football
Season
2025-2026
Player
Mertens — No. 14
Colour
Club colorway
Fit
Relaxed fan fit
Fabric
Lightweight breathable polyester
Sleeves
Short sleeve
Print
Heat-bonded name, number and crest
Keeping It Fresh
Care is simple: gentle cold cycle, air dry, no fabric softener. The heat-bonded print and the polyester knit are built to last when heat is kept out of the equation.
Quick Answers Before You Order
+What is the fit like — slim or relaxed
The fit sits between slim and relaxed: athletic enough to look like a proper football shirt, roomy enough for all-day comfort. Fans who want a looser streetwear silhouette usually go one size up, and that combination is honestly how most people wear them
+I am between two sizes — which should I pick
Go with the larger size. Football shirts layered under jackets or worn to the pub before kick-off feel better with a touch of extra room, and a slightly relaxed fit is the most common way fans wear them anyway
+Do you have a size chart in inches and centimeters
Yes — the size chart on this page lists chest measurements in inches with centimeter conversions alongside, covering every size from kids small to adult XXL. Sizing in metric or imperial, you can order with confidence
+Is this a good shirt for everyday wear, not just match days
Absolutely — that is honestly how most fans use them. Polyester football shirts double as summer tees, gym tops, and streetwear layering pieces. The breathable fabric and bold colors have made them a year-round wardrobe staple far beyond the stadium
+How do I remove stains from a football shirt
Cold water and mild detergent handle most match-day stains. For stubborn ones, dab (do not rub) with diluted vinegar before a normal cold wash. Bleach is the enemy of colored football shirts
+What is the difference between the fan version and player version shirt
Same design, two cuts. Player version: athletic fit and performance fabric like the pros wear. Fan version: identical colors and crest in a relaxed cut built for the stands, the street, and the sofa. Both carry Mertens's name and number
+Which player and number is printed on this shirt
The back reads Mertens 14, applied in the lettering style of that Belgium Football season. It is the exact pairing fans remember from the campaign
Ready to wear Mertens's name on your back? Pick your size from the selector — and if you would rather have your own name and number, custom printing is one option away at checkout.
Belgium 2025-2026 Away Concept Football Kit (Viper) (Mertens 14)
Belgium Football · 2025-2026 · Away · No. 14
Belgium 2025-2026 Away Concept Football Kit (Viper) (Mertens 14) is a fan version football shirt for the 2025-2026 season, produced for supporters in a breathable polyester build with a team colourway. It is a supporter-tier replica rather than a player-issue garment, so the fit runs true to standard sizing and the price stays accessible for everyday wear.
Belgium Football 2025-2026 away with Mertens 14 printing
Made for fans — see the size table below
Breathable polyester, team colour colourway
Custom name and number printing available at checkout
Ships worldwide from our football shirt store
Belgium Football · 2025-2026
There are current-season shirts, and then there are shirts that mean something. This Belgium Football kit from the 2025-2026 season carries Mertens (No. 14)'s name and number — the exact pairing that made that campaign worth remembering.
The Design
Football design is a language, and this shirt speaks it fluently. The 2025-2026 Belgium Football colorway, the era-correct typography on the back, the clean front — it is the kind of kit that looks considered from every angle.
Fit, Fabric & Details
A quick note on versions: this is the supporter's cut of the kit. Same colors, same crest, same name and number as the on-pitch design, with a relaxed fit that makes it wearable seven days a week rather than ninety minutes.
Product Specification
Condition
Brand new with tags
Team
Belgium Football
Season
2025-2026
Player
Mertens — No. 14
Colour
Club colorway
Fit
Relaxed fan fit
Fabric
Lightweight breathable polyester
Sleeves
Short sleeve
Print
Heat-bonded name, number and crest
Keeping It Fresh
Care is simple: gentle cold cycle, air dry, no fabric softener. The heat-bonded print and the polyester knit are built to last when heat is kept out of the equation.
Quick Answers Before You Order
+What is the fit like — slim or relaxed
The fit sits between slim and relaxed: athletic enough to look like a proper football shirt, roomy enough for all-day comfort. Fans who want a looser streetwear silhouette usually go one size up, and that combination is honestly how most people wear them
+I am between two sizes — which should I pick
Go with the larger size. Football shirts layered under jackets or worn to the pub before kick-off feel better with a touch of extra room, and a slightly relaxed fit is the most common way fans wear them anyway
+Do you have a size chart in inches and centimeters
Yes — the size chart on this page lists chest measurements in inches with centimeter conversions alongside, covering every size from kids small to adult XXL. Sizing in metric or imperial, you can order with confidence
+Is this a good shirt for everyday wear, not just match days
Absolutely — that is honestly how most fans use them. Polyester football shirts double as summer tees, gym tops, and streetwear layering pieces. The breathable fabric and bold colors have made them a year-round wardrobe staple far beyond the stadium
+How do I remove stains from a football shirt
Cold water and mild detergent handle most match-day stains. For stubborn ones, dab (do not rub) with diluted vinegar before a normal cold wash. Bleach is the enemy of colored football shirts
+What is the difference between the fan version and player version shirt
Same design, two cuts. Player version: athletic fit and performance fabric like the pros wear. Fan version: identical colors and crest in a relaxed cut built for the stands, the street, and the sofa. Both carry Mertens's name and number
+Which player and number is printed on this shirt
The back reads Mertens 14, applied in the lettering style of that Belgium Football season. It is the exact pairing fans remember from the campaign
Ready to wear Mertens's name on your back? Pick your size from the selector — and if you would rather have your own name and number, custom printing is one option away at checkout.
