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Our Best Sellers collection

Explore Premium Fitness & Activewear Best Sellers

Refresh your workout wardrobe with fitness and activewear from Allen Fitness. Explore this collection for your next gym session, running routine or everyday active look.

Keep your style focused on you. Choose pieces that suit the way you train, pair them with your favourite essentials and create an outfit that takes you from workout time to downtime.

Browse the collection and find your next fitness favourite. Check each product page for sizing, materials and care details before choosing your fit.

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  • 60108d4f77d642fab2ba89168f682dd3-Max

    Honey Plus Size Short Sleeve Surplice Neck Midi Dress

    Sale price: £59.15 Regular price: £69.35 Save 15%
  • d0fe778a-64c0-4129-97b8-26ccb5ee30a8-Max-Origin

    High-Low Round Neck Sleeveless Dress

    Sale price: £36.71 Regular price: £49.97 Save 27%
  • 4ab9123f-02b6-4897-a85d-20f945b895d9-Max-Origin

    Full Size Satin Cowl Neck High Slit Maxi Dress Plus Size

    Sale price: £77.51 Regular price: £87.71 Save 12%
  • Woman wearing a black sports bra and leggings on a white background

    Women's ButterSoft™ Cut Out Long Line Sports Bra

    Price range: £33.66 – £38.25
  • Woman wearing a black sports bra with 'nova' branding on a white background

    SeamlessLift™ Halter Sports Bra

    Sale price: £36.71 Regular price: £50.49 Save 27%
  • CloudForm front-wrap sports mini skort in beige

    CloudForm™ Front Wrap Sports Mini Skort - Beige

    Price range: £33.66 – £36.72
  • Model wearing beige wrap-front sports mini skort and ruched sports bra with white trainers, front view

    CloudForm™ Front Wrap Sports Mini Skort

    Price range: £33.66 – £36.72
  • Woman wearing a black bralette against a white background

    Women's ButterSoft Low V Neck Sports Bra

    Price range: £25.50 – £26.49
  • Walking model wearing black high-waisted leggings and V-neck sports bra with white trainers

    SeamlessLift™ 25″ High Rise Legging

    Price range: £27.54 – £58.14
  • Core Nylon Cropped Windbreaker Sports Jacket - Blue - Premium Fitness & Activewear for Men & Women|UK

    Women's Cropped Windbreaker Sports Jacket

    Sale price: £42.84 Regular price: £70.69 Save 39%
  • ButterSoft™ Contrast Trim Sports Skort - Oat Milk - Premium Fitness & Activewear for Men & Women|UK

    Women's Contrast Trim Sports Skort - Oat Milk

    Sale price: £58.14 Regular price: £95.93 Save 39%
  • https://cdn.shopify.com/s/files/1/0293/9277/files/07-22-24_S2_52_23000626_Olive_CXB_RL_15-18-41_39024_PXF.jpg?v=1721931485

    Wellness Club Active Short - Olive

    Sale price: £24.21 Regular price: £31.53 Save 23%
  • Woman wearing black athletic outfit with brand logo on a white background

    CloudForm™ 3″ Invisible Scrunch Biker Short

    Price range: £27.54 – £39.78
  • Model wearing beige wrap-front sports mini skort and ruched sports bra with white trainers, front view

    CloudForm™ Front Wrap Sports Mini Skort

    Price range: £33.66 – £45.90
  • Woman in black athletic wear posing on a white background

    Women's ButterSoft 4″ V Front Ruched Biker Shorts

    Price range: £36.72 – £38.25
  • ButterSoft Ruched Halter Sports Bra - Black - Premium Fitness & Activewear for Men & Women|UK

    ButterSoft Ruched Halter Sports Bra

    Sale price: £36.72 Regular price: £60.59 Save 39%
  • Woman wearing a beige sports bra and shorts set on a white background

    ButterSoft™ 3″ Foldover Biker Short - Black

    Price range: £29.80 – £52.02
  • Front view of fitted brown short-sleeve sports top and matching shorts on a model

    ProStretch™ Short Sleeve Sports Top

    Price range: £33.66 – £42.84
  • 33″ Low Rise Foldover Flare Legging - Black - Premium Fitness & Activewear for Men & Women|UK

    ButterSoft™ 33″ Low Rise Foldover Flare Legging

    Sale price: £67.32 Regular price: £71.40 Save 6%
  • Woman in a black dress holding a drink and a bag, standing next to a plant.

    Women's High Neck Short Sleeve Sports Top

    Sale price: £58.14 Regular price: £95.93 Save 39%