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GymBum UK Blue Steel Combat Rash Guard

GymBum UK Blue Steel Combat Rash Guard

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£37.49
£49.99 £37.49
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    GymBum UK Blue Steel Combat Rash Guard

    2XS

    UK Size EU Size US Size Chest (cm) Chest (in) Waist (cm) Waist (in) Hip (cm) Hip (in)
    6 34 2 79-83 31-32.5 61-65 24-25.5 86-90 34-35.5
    8 36 4 84-88 33-34.5 66-70 26-27.5 91-95 36-37.5
    10 38 6 89-93 35-36.5 71-75 28-29.5 96-100 38-39.5
    12 40 8 94-98 37-38.5 76-80 30-31.5 101-105 40-41.5
    14 42 10 99-104 39-41 81-86 32-34 106-111 42-43.5
    16 44 12 105-110 41.5-43.5 87-92 34.5-36 112-117 44-46
    UK Size EU Size US Size Waist (cm) Waist (in) Hip (cm) Hip (in)
    6 34 2 61-65 24-25.5 86-90 34-35.5
    8 36 4 66-70 26-27.5 91-95 36-37.5
    10 38 6 71-75 28-29.5 96-100 38-39.5
    12 40 8 76-80 30-31.5 101-105 40-41.5
    14 42 10 81-86 32-34 106-111 42-43.5
    16 44 12 87-92 34.5-36 112-117 44-46
    UK Size EU Size US Size Chest (cm) Chest (in) Waist (cm) Waist (in) Hip (cm) Hip (in)
    6 34 2 79-83 31-32.5 61-65 24-25.5 86-90 34-35.5
    8 36 4 84-88 33-34.5 66-70 26-27.5 91-95 36-37.5
    10 38 6 89-93 35-36.5 71-75 28-29.5 96-100 38-39.5
    12 40 8 94-98 37-38.5 76-80 30-31.5 101-105 40-41.5
    14 42 10 99-104 39-41 81-86 32-34 106-111 42-43.5
    16 44 12 105-110 41.5-43.5 87-92 34.5-36 112-117 44-46
    Size Chest (inches) Underbust (inches)
    XS 33⅛ 27½
    S 34⅝ 29⅛
    M 36¼ 30¾
    L 39⅜ 33½
    XL 42½ 36¼
    2XL 45⅝ 39
    3XL 48⅞ 41¾
    UK Size EU Size US Size Chest (cm) Chest (in) Waist (cm) Waist (in)
    XS 44 34 86-91 34-36 71-76 28-30
    S 46 36 91-97 36-38 76-81 30-32
    M 48 38 97-102 38-40 81-86 32-34
    L 50 40 102-107 40-42 86-91 34-36
    XL 52 42 107-112 42-44 91-97 36-38
    2XL 54 44 112-117 44-46 97-102 38-40
    UK Size EU Size US Size Waist (cm) Waist (in) Hip (cm) Hip (in)
    XS 44 34 71-76 28-30 86-91 34-36
    S 46 36 76-81 30-32 91-97 36-38
    M 48 38 81-86 32-34 97-102 38-40
    L 50 40 86-91 34-36 102-107 40-42
    XL 52 42 91-97 36-38 107-112 42-44
    2XL 54 44 97-102 38-40 112-117 44-46
    EU Size UK Size US Size
    35 2.5 5
    36 3.5 6
    37 4 6.5
    38 5 7.5
    39 6 8.5
    40 6.5 9
    41 7.5 10
    EU Size UK Size US Size
    35 2.5 5
    36 3.5 6
    37 4 6.5
    38 5 7.5
    39 6 8.5
    40 6.5 9
    41 7.5 10
    How to measure: For the most accurate fit, measure yourself in your underwear. Use a soft measuring tape and keep it snug but not tight. For chest measurements, measure around the fullest part of your bust. For waist, measure around the narrowest part. For hips, measure around the fullest part. For sports bras, measure your underbust directly under your bust where the band sits.

    Why You’ll Love It

    Built for Combat Training
    Designed to perform through grappling, striking, and high-intensity conditioning sessions.

    Locked-In Compression Fit
    Athletic compression supports muscle engagement while allowing complete freedom of movement.

    Moisture-Wicking Performance Fabric
    Advanced sweat control helps keep you cool, dry, and focused during demanding workouts.

    Four-Way Stretch Mobility
    Flexible performance fabric moves naturally with your body through takedowns, scrambles, and explosive drills.

    Durable Flatlock Construction
    Flatlock seams reduce friction and irritation while strengthening the garment for repeated mat sessions.

    Built For

    The GymBum UK Blue Steel Combat™ Rash Guard is designed for athletes pushing through demanding training environments.

    Perfect for:

    🥋 Brazilian Jiu-Jitsu (BJJ) – Built to handle grappling and mat contact
    🥊 Mixed Martial Arts (MMA) – Ideal for striking drills, sparring, and conditioning work
    🏋️ Strength & Conditioning – Durable compression fit for intense gym sessions
    🌊 Cold Water & Outdoor Training – Performance fabric helps maintain comfort in demanding environments

    Performance Engineering

    Every detail of the Blue Steel Combat™ Rash Guard is engineered for athletes who train with purpose. The recycled performance fabric delivers durability and flexibility, while the compression-style cut supports natural movement during high-output training. Flatlock seams reduce irritation and reinforce durability, helping the garment maintain its structure through repeated sessions.

    Built for impact. Designed to endure.

    GymBum UK Blue Steel Combat™ Rash Guard

    Built for impact. Engineered to endure.

    The Blue Steel Combat™ Rash Guard is designed for fighters, lifters, and disciplined athletes who demand uncompromising performance. Constructed from premium recycled performance fabric, it delivers advanced moisture control, four-way stretch mobility, and a locked-in athletic fit that moves seamlessly through every grapple, strike, and conditioning round.

    Flatlock seams minimise friction under pressure while reinforcing durability for repeated mat sessions and heavy training cycles. The compression-style cut supports muscle engagement without restricting movement, maintaining structure and shape through the toughest sessions.

    From combat sports to strength training and cold-water sessions, Blue Steel performs without distraction.

    Not just training wear — performance armour.

    Performance Features

    • 88% recycled polyester, 12% elastane (EU production)
    • 81% recycled polyester, 19% spandex (US/MX production)
    • Fabric weight: 230 g/m² (EU)
    • Fabric weight: 255 g/m² (US/MX)
    • Advanced moisture-wicking performance fabric
    • Four-way stretch for unrestricted movement
    • Athletic fitted cut
    • Flatlock seams for durability and comfort
    • UPF 50+ sun protection
    • Premium performance construction
    • Certified recycled content under GRS (Global Recycled Standard)
    • OEKO-TEX® 100 certified fabric

    Age restriction: For adults

    EU Warranty: 2 years

    In compliance with the General Product Safety Regulation (GPSR), GYMBUMUK LTD ensures all consumer products meet EU safety standards.
    For product safety enquiries, contact: Support@gymbumuk.com

    Size guide

      CHEST (inches) WAIST (inches) HIPS (inches)
    2XS 34 ⅝ 28 ⅜ 35 ⅜
    XS 36 ¼ 29 ⅞ 37
    S 37 ¾ 31 ½ 38 ⅝
    M 39 ⅜ 33 ⅛ 40 ⅛
    L 42 ½ 36 ¼ 43 ¼
    XL 45 ⅝ 39 ⅜ 46 ½
    2XL 48 ⅞ 42 ½ 49 ⅝
    3XL 52 45 ⅝ 52 ¾
    4XL 55 ⅛ 48 ⅞ 55 ⅞
    5XL 58 ¼ 52 59
    6XL 61 ⅜ 55 ⅛ 62 ¼
      CHEST (cm) WAIST (cm) HIPS (cm)
    2XS 88 72 90
    XS 92 76 94
    S 96 80 98
    M 100 84 102
    L 108 92 110
    XL 116 100 118
    2XL 124 108 126
    3XL 132 116 134
    4XL 140 124 142
    5XL 148 132 150
    6XL 156 140 158

    Frequently Asked Questions

    Find answers to common questions about our products

    • Our products are crafted from premium, moisture-wicking fabrics designed for maximum performance and comfort during your workouts.

    • Please refer to our detailed size guide available on each product page. We recommend measuring yourself and comparing to our size chart for the best fit.

    • We offer a 30-day return policy on all unworn items with tags attached. Please visit our returns page for full details.

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