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    140 reviews

    Foundation Rash Guard

    Size Guide
    Rash Guard Size Chart

    Gold BJJ Rash Guard Size Chart

    All of our rash guards follow the same size chart. Please find your waist size below to select the best fit. Our rash guards are designed to fit tight. If you're not sure about the best size or would like a looser fit, please size up.

    Size Weight

    XS

    95lbs to 115lbs

    S

    105lbs to 130lbs

    M

    125lbs to 165lbs

    L

    155lbs to 175lbs

    XL

    170lbs to 195lbs

    XXL

    185lbs to 230lbs

    XXXL

    230lbs and up

    Not sure if you're choosing the right size? We get it, Jiu Jitsu gear sizing can be tricky. That's why we offer totally free pre-paid returns.

    Rash Guard Size Chart

    Gold BJJ Rash Guard Size Chart

    All of our rash guards follow the same size chart. Please find your waist size below to select the best fit. Our rash guards are designed to fit tight. If you're not sure about the best size or would like a looser fit, please size up.

    Size Weight

    XS

    95lbs to 115lbs

    S

    105lbs to 130lbs

    M

    125lbs to 165lbs

    L

    155lbs to 175lbs

    XL

    170lbs to 195lbs

    XXL

    185lbs to 230lbs

    XXXL

    230lbs and up

    Not sure if you're choosing the right size? We get it, Jiu Jitsu gear sizing can be tricky. That's why we offer totally free pre-paid returns.

    Our flagship ranked Jiu Jitsu rash guard. Match with your belt rank, choose from short or long sleeve. Approved for IBJJF competition.

    Size
    Color
    White
    Blue
    Purple
    Brown
    Black
    Red
    Sleeve Length

    Ships Today from San Diego • Free Returns

    Pair with our Fight Shorts and a base layer of Spats or Compression Shorts for the ultimate No-Gi uniform.

    Unrivaled Comfort

    We use buttery smooth flatlock stitching that doesn't itch and irritate.

    Slightly extended cut means that your rash guard won't ride up while you roll.

    Ventilated mesh armpit vents allow you to get through the toughest training rounds without overheating.

    Built to Last

    Sublimated graphics won't fade or peel as you roll or wash your rash guard.

    Backed by the Gold BJJ Guarantee: if you don't love your Foundation Rashguard, let us know and we'll replace or refund your order.

    IBJJF Legal

    Competition rules require that you wear a rash guard with at least 10% of your belt rank.

    Don't get DQ'd for wearing an illegal uniform. Our Foundation rash guard has been specifically designed to meet all Jiu Jitsu tournament requirements.

    Customer Reviews
    4.5 Based on 140 Reviews
    5 ★
    76% 
    106
    4 ★
    12% 
    17
    3 ★
    6% 
    8
    2 ★
    4% 
    5
    1 ★
    2% 
    4
    Customer Photos
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    Filter Reviews:
      S
      01/24/2025
      Samuel SVG verified by SHOP
      United States

      Fit and feel are nice

      T
      01/21/2025
      Thomas SVG verified by SHOP
      United States

      Solid but a little small at the waist.

      RM
      01/10/2025
      Rachel M.
      United States

      Product as advertised. Quick delivery.

      Gold BJJ products were as advertised and they were quick on delivery. Thank you for bring true to your word! Looking forward to ordering again.

      IP
      01/09/2025
      Ian P.
      United States

      Rash guard

      Great rashguard good fit good quality, gold BJJ setting the standard.

      M
      01/09/2025
      McKeever SVG verified by SHOP
      United States

      Very tight for a XXL Nice material