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GymBumUK Active Performance Tee

GymBumUK Active Performance Tee

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£21.24
£24.99 £21.24
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    GymBumUK Active Performance Tee

    Black / S

    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.

    Power through your day in the GymBumUK Active Performance Tee—the ultimate all-rounder for fitness and lifestyle. Built from 100% polyester, this shirt features cutting-edge QuickDry technology that keeps sweat at bay, so you stay cool and confident through grueling workouts and casual moments alike. The lightweight, breathable fabric moves with you, while the clean GymBumUK logo adds understated style. Whether you're crushing cardio, hitting the weights, running outdoors, or just hanging out, this versatile unisex tee delivers comfort and performance without compromise. Durable, stylish, and ready for anything—it's the go-to piece for active living.

    Size guide

      LENGTH (inches) CHEST (inches)
    S 27 ½ 31-34
    M 28 ⅜ 35-38
    L 29 ⅛ 39-41
    XL 29 ⅞ 42-45
    2XL 30 ¾ 46-48
      LENGTH (cm) CHEST (cm)
    S 70 78.7-86.4
    M 72 89-96.5
    L 74 99-104.1
    XL 76 106.7-114.3
    2XL 78 116.8-122

    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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