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      Oklahoma City Thunder Blue Fast Break Replica jersey, Isaiah Hartenstein, NBA fan version, size S-XXL
      • Oklahoma City Thunder Blue Fast Break Replica jersey, Isaiah Hartenstein, NBA fan version, size S-XXL
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      Youth Oklahoma City Thunder Isaiah Hartenstein Blue 2025 NBA Finals Champions Fast Break Replica Player Jersey - Icon Edition

      $36.80 USD
      $59.90 USD
      Shipping fees will be calculated at checkout.
      Size

      Size Guide

      Accurate Fit • True to Size • Global Standards

      KitElite  Size Guide

      Find your perfect game-day fit. Detailed measurements across Men's, Women's, Youth, and Toddler/Baby retro basketball jerseys.

      Fit Advice for True Fans: Our jerseys follow standard US Athletic sizing.
      • Standard Athletic Fit: Order your usual t-shirt size for a relaxed, authentic athletic look.
      • Layering / Streetwear Style: If you plan to wear your jersey over a hoodie or prefer a roomy 90s throwback vibe, we strongly recommend sizing up one size.
      📏 How to Measure Your Jersey

      For best results, lay a well-fitting jersey or t-shirt flat on a hard surface and measure using a soft tape measure:

      1. Chest Width (Pit-to-Pit):
      Measure straight across the chest from armpit seam to armpit seam. (Multiply by 2 for full chest circumference).
      2. Back Body Length:
      Measure from the highest point of the shoulder seam straight down to the bottom hem of the jersey.

      *Note: Due to manual craftsmanship and elastic fabric, please allow a standard manufacturing variance of 1–3 cm (0.5–1.2 inches).

      🏀 Men's Basketball Jersey Size Chart (Adult S – 3XL)
      Size Numeric Equivalent Chest Circumference Jersey Length Recommended Height Recommended Weight
      S (Small) 36 – 38 40 in / 102 cm 29.5 in / 75 cm 5'5" – 5'7" (165–172 cm) 120–145 lbs (55–65 kg)
      M (Medium) 40 – 42 43 in / 110 cm 30.7 in / 78 cm 5'7" – 5'10" (172–178 cm) 145–170 lbs (65–77 kg)
      L (Large) 44 – 46 46 in / 118 cm 31.9 in / 81 cm 5'10" – 6'1" (178–185 cm) 170–195 lbs (77–88 kg)
      XL (X-Large) 48 – 50 49 in / 125 cm 33.0 in / 84 cm 6'1" – 6'3" (185–190 cm) 195–220 lbs (88–100 kg)
      2XL (XXL) 52 – 54 52 in / 132 cm 34.2 in / 87 cm 6'3" – 6'5" (190–195 cm) 220–245 lbs (100–110 kg)
      3XL (XXXL) 56 55 in / 140 cm 35.4 in / 90 cm 6'5"+ (195+ cm) 245+ lbs (110+ kg)
      🏀 Women's Jersey Size Chart (S – 2XL)

      *Women's jerseys feature tailored bust contours and slightly tapered waistlines for a flattering silhouette.

      Size US Dress Size Bust Circumference Waist Length
      S 4 – 6 34–36 in / 86–91 cm 26–28 in / 66–71 cm 26.5 in / 67 cm
      M 8 – 10 37–39 in / 94–99 cm 29–31 in / 73–78 cm 27.5 in / 70 cm
      L 12 – 14 40–42 in / 101–107 cm 32–34 in / 81–86 cm 28.5 in / 72 cm
      XL 16 – 18 43–45 in / 109–114 cm 35–37 in / 89–94 cm 29.5 in / 75 cm
      2XL 20 46–48 in / 117–122 cm 38–40 in / 96–101 cm 30.5 in / 77 cm
      🏀 Youth & Kids Jersey Size Chart (Age 8 – 16)

      *Designed for school-age basketball players and junior fans. If child is between sizes, select the larger size for room to grow.

      Youth Size Age Reference Chest Circumference Jersey Length Kid's Height
      Youth S 8 – 9 Years 32 in / 81 cm 23.5 in / 60 cm 4'1" – 4'5" (125–135 cm)
      Youth M 10 – 11 Years 34 in / 86 cm 25.0 in / 64 cm 4'5" – 4'9" (135–145 cm)
      Youth L 12 – 13 Years 36 in / 91 cm 26.5 in / 67 cm 4'9" – 5'1" (145–155 cm)
      Youth XL 14 – 16 Years 38 in / 96 cm 28.0 in / 71 cm 5'1" – 5'5" (155–165 cm)
      🏀 Toddler & Infant / Baby Kit Guide (0 – 7 Years)

      *Toddler sets include comfortable matching elastic shorts with soft skin-friendly lining.

      Category Tag Size Age / Months Top Length Chest Circumference Child Height
      Infant / Baby 3M – 6M 3 – 6 Months 13.0 in / 33 cm 20 in / 51 cm 23–26 in (58–66 cm)
      Infant / Baby 12M – 18M 12 – 18 Months 14.5 in / 37 cm 22 in / 56 cm 28–32 in (71–81 cm)
      Toddler 2T / 3T 2 – 3 Years 16.5 in / 42 cm 24 in / 61 cm 33–37 in (84–94 cm)
      Toddler 4T / 5T 4 – 5 Years 18.5 in / 47 cm 26 in / 66 cm 38–43 in (96–109 cm)
      Little Kids 6 / 7 6 – 7 Years 20.5 in / 52 cm 28 in / 71 cm 44–48 in (112–122 cm)

      Still Not Sure About Your Size?

      Tell us your height, weight, and whether you prefer an athletic or oversized streetwear fit. Our customer service team will recommend the exact size for you within 24 hours.

      Ask Fit Support: jerseyhelp@outlook.com
      Quantity

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      • 30-day returns

      Materials & Craftsmanship
      Returns & Size Exchanges
      Care & Wash Guide
      Sustainability & Mindful Production

      Fans rarely need convincing. They need gear that keeps up with them. This is the Oklahoma City Thunder Fast Break Replica in Blue — a supporter build for NBA game days, watch parties and everyday wear.

      Specification

      LeagueNBA
      TeamOklahoma City Thunder
      PlayerIsaiah Hartenstein
      Season2025
      VersionFan version (replica)
      ColourBlue
      MaterialPolyester mesh
      FitStandard fan cut
      Size rangeS–XXL

      Lightweight mesh with a soft hand feel keeps the attention on the game rather than on the kit. Heat-applied name, numbers and team detailing stay crisp through a season of washing.

      In short: an NBA basketball jersey from the Oklahoma City Thunder line, Blue colourway, polyester mesh, fan-version cut. Built for game days rather than the court itself.
      Material
      Breathable polyester mesh
      Size range
      S–XXL, standard fan cut
      Dispatch
      Made to order in 3–5 working days
      Returns
      30-day returns on unworn items
      Oklahoma City Thunder jerseyIsaiah HartensteinNBA replicablue colourwayfan version2025 line
      ▸ Size & fit
      Unisex sizing S–XXL. Standard fan cut — true to size for most supporters; size up one to layer over a hoodie.
      ▸ Materials & care
      100% polyester mesh, lightweight and breathable. Wash cold inside out and hang dry — the print will thank you.
      ▸ Who it is for
      A Oklahoma City Thunder replica in Blue — a practical choice for anyone weighing supporter-grade builds.

      FAQ

      ▸ Is this Oklahoma City Thunder Fast Break Replica the on-court version?
      No. It is the fan-version build made for supporters — comfortable, breathable, and styled after the team look rather than the player-issue kit.
      ▸ Does the Isaiah Hartenstein Oklahoma City Thunder Fast Break Replica run true to size?
      Yes — the standard fan cut is true to size for most supporters. If you are between sizes, the roomier option is the safer call.
      ▸ What is the return policy on this Oklahoma City Thunder piece?
      Unworn items can be returned within 30 days. Because each piece is made to order, personalised builds are final sale.
      ▸ How does the fan version compare with player-issue kit?
      The fan version prioritises comfort and everyday wear: lighter mesh, relaxed cut, heat-applied graphics. Player-issue adds on-court spec you rarely need off it.
      ▸ What sizes does the Oklahoma City Thunder jersey come in?
      Unisex sizing S–XXL with a standard fan cut. True to size for most supporters; size up one to layer over a hoodie.

      Fans rarely need convincing. They need gear that keeps up with them. This is the Oklahoma City Thunder Fast Break Replica in Blue — a supporter build for NBA game days, watch parties and everyday wear.

      Specification

      LeagueNBA
      TeamOklahoma City Thunder
      PlayerIsaiah Hartenstein
      Season2025
      VersionFan version (replica)
      ColourBlue
      MaterialPolyester mesh
      FitStandard fan cut
      Size rangeS–XXL

      Lightweight mesh with a soft hand feel keeps the attention on the game rather than on the kit. Heat-applied name, numbers and team detailing stay crisp through a season of washing.

      In short: an NBA basketball jersey from the Oklahoma City Thunder line, Blue colourway, polyester mesh, fan-version cut. Built for game days rather than the court itself.
      Material
      Breathable polyester mesh
      Size range
      S–XXL, standard fan cut
      Dispatch
      Made to order in 3–5 working days
      Returns
      30-day returns on unworn items
      Oklahoma City Thunder jerseyIsaiah HartensteinNBA replicablue colourwayfan version2025 line
      ▸ Size & fit
      Unisex sizing S–XXL. Standard fan cut — true to size for most supporters; size up one to layer over a hoodie.
      ▸ Materials & care
      100% polyester mesh, lightweight and breathable. Wash cold inside out and hang dry — the print will thank you.
      ▸ Who it is for
      A Oklahoma City Thunder replica in Blue — a practical choice for anyone weighing supporter-grade builds.

      FAQ

      ▸ Is this Oklahoma City Thunder Fast Break Replica the on-court version?
      No. It is the fan-version build made for supporters — comfortable, breathable, and styled after the team look rather than the player-issue kit.
      ▸ Does the Isaiah Hartenstein Oklahoma City Thunder Fast Break Replica run true to size?
      Yes — the standard fan cut is true to size for most supporters. If you are between sizes, the roomier option is the safer call.
      ▸ What is the return policy on this Oklahoma City Thunder piece?
      Unworn items can be returned within 30 days. Because each piece is made to order, personalised builds are final sale.
      ▸ How does the fan version compare with player-issue kit?
      The fan version prioritises comfort and everyday wear: lighter mesh, relaxed cut, heat-applied graphics. Player-issue adds on-court spec you rarely need off it.
      ▸ What sizes does the Oklahoma City Thunder jersey come in?
      Unisex sizing S–XXL with a standard fan cut. True to size for most supporters; size up one to layer over a hoodie.
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