1 4

Women's Backless One-Piece Sport Suit

Women's Backless One-Piece Sport Suit

Fast dispatch. 30-day hassle-free returns

£24.87
£24.87
Sale Sold out
Tax included. Shipping calculated at checkout.

    Women's Backless One-Piece Sport Suit

    orange / XS

    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.

    A bold, backless one-piece sport suit that combines style and performance. Made from a breathable, quick-dry 87% polyester and 13% spandex blend, it delivers compression and freedom of movement for yoga, running, gym sessions, and dance.

    • Material: 87% Polyester, 13% Spandex — breathable, quick-dry, and compressed
    • Style: Sleeveless, backless one-piece with patchwork/geometric detail
    • Available colours: Orange, Green, Pink, Yellow
    • Sizes: XS, S, M, L, XL (true to size)
    • Ideal for: Yoga, running, gym, dance

    Size guide (cm):

    Size Waist Bust Hip Height Weight (kg)
    XS 60–80 80–100 76–96 156–166cm 48–56
    S 66–85 86–106 82–102 160–170cm 52–60
    M 72–91 92–112 86–106 170–175cm 60–66
    L 78–97 98–118 90–110 175–180cm 66–72
    XL 84–103 102–122 94–114 180–190cm 72–80

    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.

    RECENTLY VIEWED PRODUCTS

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand

    Order Before 3PM — Same-Day Dispatch

    Official GymBum UK® — Registered Brand