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          Boston Red Sox Newborn Alternate Replica Romper Jersey Red
          Boston Red Sox Newborn Alternate Replica Romper Jersey Red
          Boston Red Sox Newborn Alternate Replica Romper Jersey Red
          Boston Red Sox Newborn Alternate Replica Romper Jersey Red
          • Boston Red Sox Newborn Alternate Replica Romper Jersey Red
          • Boston Red Sox Newborn Alternate Replica Romper Jersey Red
          • Boston Red Sox Newborn Alternate Replica Romper Jersey Red
          • Boston Red Sox Newborn Alternate Replica Romper Jersey Red
          1 / 4

          Boston Red Sox Newborn Alternate Replica Romper Jersey Red

          $42.90 USD
          $59.90 USD
          Shipping fees will be calculated at checkout.

          • Free worldwide shipping

          •  30-Day Easy Returns

          • Carbon neutral

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          Size

          Size Guide

          Comprehensive Size Matrix

          Fan Gear & Apparel Sizing Guide

          Ensure a pristine fit for every match day. All dimension tables feature precise metric (cm) and imperial (in) measurements covering our complete catalog.

          ✉ Dedicated Fan Support: jerseyhelp@hotmail.com
          Infant & Baby (0-24M) Junior Kids (2-12Y) Youth & Teen (8-16Y) Women's Collection Men's Collection (Up to 3XL) Shorts & Bottoms

          Infant & Baby Size Guide (0-24 Months)

          Specially structured soft-touch sizing designed for infants and toddlers.

          Size Tag Target 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

          Junior Kids Size Guide (2-12 Years)

          Comfortable athletic cuts tailored for active growing children.

          Size Tag Age Group 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 & Teen Size Guide (8-16 Years)

          Proportional athletic scaling built for junior athletes and young supporters.

          Size Tag Age Range US Standard 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 Apparel Collection

          Contoured silhouette cuts engineered for optimum comfort and performance.

          Size Tag 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 Apparel Collection (Includes 3XL)

          Standard athletic performance fit tailored for game days and everyday wear.

          Size Tag 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 - 117 cm 44 - 46"

          Shorts & Bottoms Size Guide

          Flexible elastic waist sizing crafted for maximum mobility and ease.

          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"
          3XL 114 - 119 cm 45 - 47"

          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"

          Fit Guidance & Sizing Advice:

          The charts above represent standard fitting criteria. Specific tailored cuts or alternate jersey styles may experience slight variations. If your metrics fall directly between two independent sizes, we recommend choosing the larger size to ensure optimal comfort, relaxed movement, and room for athletic layering.

          Need personalized recommendations or have questions regarding specific team apparel? Reach out directly to our customer care team at jerseyhelp@hotmail.com for prompt assistance.
          Quantity
          Alternate · jersey

          Boston Red Sox Newborn Alternate Replica Romper Jersey Red

          Full product details (tap to expand)

          This is the Boston Red Sox supporter's jersey: breathable knit, a true-to-size fan cut, and a stitched crest that reads from the back row in the Red design. Layer it, gift it, live in it - it is built for the long haul, not just one fixture.

          Why fans choose it

          • Cut long enough to stay put through a full ninety minutes. The detail Boston Red Sox supporters notice first.
          • Soft inner face that sits comfortably over a base layer. Cut for the way Boston Red Sox fans wear a jersey.
          • Reinforced hem stitching for a jersey worn week after week. Easy to care for, week after Boston Red Sox week.
          • Alternate detailing kept faithful for supporters.
          Breathable knit
          Fabric
          Lightweight Boston Red Sox polyester that wicks sweat and stays soft through full Red matches. Made to survive a full Boston Red Sox campaign.
          Layered tackle-twill
          Print
          Name and number sit flush and hold up wash after wash on this Red Boston Red Sox jersey. Holds up from the first Boston Red Sox fixture to the last.
          True-to-size fan cut
          Fit
          Straight, relaxed shoulders on this Boston Red Sox Red jersey; size up to layer a base layer. Tested through a of Boston Red Sox fixtures.
          Stitched badge
          Crest
          The Boston Red Sox crest lies flat and keeps its shape season after season in the Red shade. Made to survive a full Boston Red Sox campaign.

          Where it works

          • Gifting: A strong present for any supporter, whether birthday or holiday. Built around Boston Red Sox's Red palette.
          • Travel: Compact and light - throw it in the bag for away days and trips. A jersey pick for Boston Red Sox supporters who wear it past full time.
          • Watch party: The easy pick for the pub or the sofa when the fixture is on. Built around Boston Red Sox's Red palette.
          • Training: Light enough for a warm-up, tough enough for a five-a-side. It reads as Boston Red Sox support without you having to say a word.

          Size guide

          Men size chart – tap to expand

          Men jersey size chart (inches) for this Boston Red Sox Red jersey. Runs true to size.

          SizeChestLength
          SChest 36 inLength 27 in
          MChest 40 inLength 28 in
          LChest 44 inLength 29 in
          XLChest 48 inLength 30 in
          XXLChest 52 inLength 31 in
          3XLChest 56 inLength 32 in

          Tip: wash cold, line dry. See the Boston Red Sox collection for the rest of the kit.

          Frequently Asked Questions
          Are custom name and number options free?
          For this Boston Red Sox piece: Yes - the customisation is included at no extra charge. Add up to twelve letters and two digits at checkout.
          Does the jersey run small, true to size, or loose?
          On the Boston Red Sox jersey: It runs true to size for most buyers. If you sit between sizes and prefer a relaxed streetwear fit, go one size up.
          Is this suitable for kids and teens?
          For this Boston Red Sox piece: Yes - our youth cut is sized down for younger supporters, with the same fabric and print as the adult version.
          Is this a good gift for a fan?
          For this Boston Red Sox Red jersey: It is a strong gift pick for any supporter - present-ready, on theme, and wearable both at the match and out on the street.
          How do I care for the printed detail?
          For Boston Red Sox supporters: Turn inside out before washing, keep the heat low, and line dry. That simple routine keeps the detail crisp.
          What makes this Boston Red Sox jersey a good fan pick?
          It is built as a fan-version piece in Red, with breathable fabric and a true-to-size cut that works at the match, at home and on the street.
          How do I pick your size on this Boston Red Sox jersey?
          Choose your usual letter size in this Boston Red Sox Red jersey; size up if you want a relaxed, layered fit for colder fixtures.
          Will the Boston Red Sox colours stay vivid after washing?
          Yes - turn the Red jersey inside out, wash cold on a gentle cycle and line dry to keep the shade and detail sharp.

          Keep browsing

          More Boston Red Sox Red jerseysBest-selling Boston Red Sox Red kitBrowse all fan-version jerseys
          Pick your cut, pick your number
          Boston Red Sox Red fan-version kit - breathable, true-to-size, built for match day and every day.
          Shop Boston Red Sox kit
          Alternate · jersey

          Boston Red Sox Newborn Alternate Replica Romper Jersey Red

          Full product details (tap to expand)

          This is the Boston Red Sox supporter's jersey: breathable knit, a true-to-size fan cut, and a stitched crest that reads from the back row in the Red design. Layer it, gift it, live in it - it is built for the long haul, not just one fixture.

          Why fans choose it

          • Cut long enough to stay put through a full ninety minutes. The detail Boston Red Sox supporters notice first.
          • Soft inner face that sits comfortably over a base layer. Cut for the way Boston Red Sox fans wear a jersey.
          • Reinforced hem stitching for a jersey worn week after week. Easy to care for, week after Boston Red Sox week.
          • Alternate detailing kept faithful for supporters.
          Breathable knit
          Fabric
          Lightweight Boston Red Sox polyester that wicks sweat and stays soft through full Red matches. Made to survive a full Boston Red Sox campaign.
          Layered tackle-twill
          Print
          Name and number sit flush and hold up wash after wash on this Red Boston Red Sox jersey. Holds up from the first Boston Red Sox fixture to the last.
          True-to-size fan cut
          Fit
          Straight, relaxed shoulders on this Boston Red Sox Red jersey; size up to layer a base layer. Tested through a of Boston Red Sox fixtures.
          Stitched badge
          Crest
          The Boston Red Sox crest lies flat and keeps its shape season after season in the Red shade. Made to survive a full Boston Red Sox campaign.

          Where it works

          • Gifting: A strong present for any supporter, whether birthday or holiday. Built around Boston Red Sox's Red palette.
          • Travel: Compact and light - throw it in the bag for away days and trips. A jersey pick for Boston Red Sox supporters who wear it past full time.
          • Watch party: The easy pick for the pub or the sofa when the fixture is on. Built around Boston Red Sox's Red palette.
          • Training: Light enough for a warm-up, tough enough for a five-a-side. It reads as Boston Red Sox support without you having to say a word.

          Size guide

          Men size chart – tap to expand

          Men jersey size chart (inches) for this Boston Red Sox Red jersey. Runs true to size.

          SizeChestLength
          SChest 36 inLength 27 in
          MChest 40 inLength 28 in
          LChest 44 inLength 29 in
          XLChest 48 inLength 30 in
          XXLChest 52 inLength 31 in
          3XLChest 56 inLength 32 in

          Tip: wash cold, line dry. See the Boston Red Sox collection for the rest of the kit.

          Frequently Asked Questions
          Are custom name and number options free?
          For this Boston Red Sox piece: Yes - the customisation is included at no extra charge. Add up to twelve letters and two digits at checkout.
          Does the jersey run small, true to size, or loose?
          On the Boston Red Sox jersey: It runs true to size for most buyers. If you sit between sizes and prefer a relaxed streetwear fit, go one size up.
          Is this suitable for kids and teens?
          For this Boston Red Sox piece: Yes - our youth cut is sized down for younger supporters, with the same fabric and print as the adult version.
          Is this a good gift for a fan?
          For this Boston Red Sox Red jersey: It is a strong gift pick for any supporter - present-ready, on theme, and wearable both at the match and out on the street.
          How do I care for the printed detail?
          For Boston Red Sox supporters: Turn inside out before washing, keep the heat low, and line dry. That simple routine keeps the detail crisp.
          What makes this Boston Red Sox jersey a good fan pick?
          It is built as a fan-version piece in Red, with breathable fabric and a true-to-size cut that works at the match, at home and on the street.
          How do I pick your size on this Boston Red Sox jersey?
          Choose your usual letter size in this Boston Red Sox Red jersey; size up if you want a relaxed, layered fit for colder fixtures.
          Will the Boston Red Sox colours stay vivid after washing?
          Yes - turn the Red jersey inside out, wash cold on a gentle cycle and line dry to keep the shade and detail sharp.

          Keep browsing

          More Boston Red Sox Red jerseysBest-selling Boston Red Sox Red kitBrowse all fan-version jerseys
          Pick your cut, pick your number
          Boston Red Sox Red fan-version kit - breathable, true-to-size, built for match day and every day.
          Shop Boston Red Sox kit
          Shop all

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          Welcome to All-Star Fan Apparel (fanapparelhub.com), your ultimate source for elite pro-stitched sports merchandise. We offer premium player jerseys, official team gear, and custom apparel across NFL, NCAA, NBA, MLB, NHL, and 2026 FIFA World Cup soccer.

          Every item features high-grade tackle-twill stitching and durable fabrics for authentic game-night quality. Enjoy secure checkout, fast 1-7 day processing, and global shipping, with dedicated support available at jerseyhelp@hotmail.com.

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