GymBumUK Rainforest Windbreaker

GymBumUK Rainforest Windbreaker

Engineered with purpose. Worn with confidence

Regular price £43.99 GBP
Regular price £55.99 GBP Sale price £43.99 GBP
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Shipped by GymBum UK

Size chart

    GymBum UK Size Guide

    🧡 GymBum UK Sports Bra Size Guide

    Size Chest (inches) Underbust (inches)
    XS 33 ⅛ 27 ½
    S 34 ⅝ 29 ⅛
    M 36 ¼ 30 ¾
    L 39 ⅜ 33 ½
    XL 42 ½ 36 ¼
    2XL 45 ⅝ 39
    3XL 48 ⅞ 41 ¾

    🧍♀️ Women’s Activewear

    UK US EU Asian Tops / Bras Leggings / Shorts Trainers (UK/EU/US)
    4–6 0–2 32–34 S XS XS 3.5 / 36 / 5
    8–10 4–6 36–38 M S S 4–5.5 / 37–38 / 6–7.5
    12–14 8–10 40–42 L M M 6–7.5 / 39–40 / 8–9.5
    16 12 44 XL L L 8–8.5 / 41–42 / 10–11
    18 14 46 XXL XL XL 9–9.5 / 43–44 / 11.5–12

    🧍♂️ Men’s Activewear

    UK US EU Asian Tops / Hoodies Shorts / Joggers Trainers (UK/EU/US)
    S S 46 M 36–38" Chest 30" Waist 6–7 / 39–40 / 7–8
    M M 48–50 L 38–40" Chest 32–34" Waist 8–9 / 41–42 / 9–10
    L L 52 XL 42–44" Chest 36" Waist 10 / 43–44 / 11
    XL XL 54 XXL 46–48" Chest 38" Waist 11 / 45–46 / 12
    XXL XXL 56 3XL 50–52" Chest 40–42" Waist 12–13 / 47–48 / 13–14

    🧵 Fit Notes

    • Asian sizes typically run 1–2 sizes smaller than UK sizing.
    • For a performance fit, choose your regular UK size.
    • For a relaxed fit, size up.
    • Measurements are approximate and may vary slightly by fabric and style.

    Fit Tip: Some of our activewear follows Asian sizing (approx. 1–2 sizes smaller than UK). Refer to the GymBum Size Guide for accurate conversions.

    The Rainforest Windbreaker delivers reliable weather protection with distinctive visual design. Lightweight, water-resistant fabric effectively shields against wind and moisture while maintaining breathability for sustained outdoor activity. The adjustable hood provides customizable coverage and fit, complemented by elasticated cuffs that secure comfort at the wrists. Strategically positioned zippered pockets offer secure storage for personal items during training or outdoor pursuits. The vibrant rainforest pattern provides aesthetic distinction while maintaining functional integrity across diverse applications. The jacket's lightweight construction enables easy portability without compromising durability, making it an efficient layering solution for outdoor training, gym sessions, and casual wear. The design balances practical weather protection with contemporary visual appeal, delivering reliable performance across varied environmental conditions. This windbreaker prioritizes both technical functionality and refined aesthetic presentation, offering dependable protection and enduring style for individuals seeking quality construction in their outerwear selection.

    Size guide

      CHEST (inches) LENGTH (inches) SLEEVE (inches)
    XS 21 28 25 ½
    S 22 28 ¾ 26
    M 23 29 ½ 26 ¼
    L 24 30 ¼ 26 ¾
    XL 25 31 27
    2XL 26 31 ¾ 27 ½
    3XL 27 32 ½ 28
      CHEST (cm) LENGTH (cm) SLEEVE (cm)
    XS 53.3 71.1 64.8
    S 55.9 73 66
    M 58.4 75 66.7
    L 61 76.8 68
    XL 63.5 78.7 68.6
    2XL 66 80.7 69.9
    3XL 68.6 82.6 71.1

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    FREE UK Shipping on Orders £50+

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    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    FREE UK Shipping on Orders £50+

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand