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PRO BACKPACK

PRO BACKPACK

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£95.00 GBP
£130.00 GBP £95.00 GBP
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    GymBum UK Size Guide

    GYMBUM UK®

    Size Guide

    1️⃣ Women – Sports Bras

    Measure Yourself

    For accurate sizing, keep the tape measure level and parallel to the ground.

    Bust
    Measure around the fullest part of your chest.

    Underbust
    Measure directly under your bust where the bra band sits.

    Body Measurements (Inches)

    Size Bust Underbust
    XS 33–34" 27–28"
    S 34–36" 28–30"
    M 36–38" 30–32"
    L 38–40" 32–34"
    XL 40–43" 34–36"
    2XL 43–46" 36–39"
    3XL 46–49" 39–42"

    Between sizes?
    Size up for a more comfortable fit.
    Size down for a more compressive performance fit.

    2️⃣ Women – Tops & T-Shirts

    Body Measurements (Inches)

    UK Size Bust Waist
    4–6 31–33" 24–26"
    8–10 33–36" 26–28"
    12–14 36–40" 28–32"
    16 40–43" 32–34"
    18 43–46" 34–37"

    3️⃣ Women – Leggings & Shorts

    Body Measurements (Inches)

    UK Size Waist Hips
    4–6 24–26" 34–36"
    8–10 26–28" 36–38"
    12–14 28–32" 38–42"
    16 32–34" 42–44"
    18 34–37" 44–46"

    4️⃣ Men – Tops & Hoodies

    Size Chest Waist
    S 36–38" 30"
    M 38–40" 32–34"
    L 42–44" 36"
    XL 46–48" 38"
    XXL 50–52" 40–42"

    5️⃣ Men – Shorts & Joggers

    Size Waist
    S 30"
    M 32–34"
    L 36"
    XL 38"
    XXL 40–42"

    Fit & Sizing Notes

    • Some styles follow Asian sizing and may run 1–2 sizes smaller than standard UK sizing.
    • Refer to each product description for specific fit details.
    • Measurements may vary slightly depending on fabric and cut.

    Pro Backpack is Reyllen’s more organised everyday backpack for athletes who move between work, training and short travel. With a 28 litre capacity, clamshell opening, padded laptop compartment, water-bottle pockets, sunglasses pocket and passport pocket, it is built to make daily carry simpler while still feeling ready for gym use.

    Where Venture leans toward larger-capacity duffleback carry, Pro Backpack is about organisation. The layout is better suited to athletes who need cleaner compartmentalisation for electronics, work items, travel documents and smaller essentials while still keeping room for training gear. Cabin-bag-friendly dimensions also make it more practical for short trips and regular travel.

    Pro Backpack is best for athletes who want one smart backpack for commuting, work, gym and short travel. It is less ideal for those who primarily want the largest main compartment possible for bulky kit, where Venture fits better. If your priority is daily structure rather than maximum volume, Pro is the stronger choice.

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