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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.

1322 products 1322 products

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  • Model wearing black oversized Sporty & Lux graphic T-shirt and matching biker shorts, full-length view

    Sporty & Lux Biker Short Set

    Sale price: £36.71 Regular price: £60.57 Save 39%
  • V Front Contrast Sports Bra - Brown - Premium Fitness & Activewear for Men & Women|UK

    CloudForm™ V Front Contrast Sports Bra

    Sale price: £45.90 Regular price: £85.83 Save 47%
  • Person wearing a black athletic outfit on a white background

    Break A Sweat Active Yoga Pant

    Sale price: £30.08 Regular price: £42.89 Save 30%
  • Close-up of pale-lime sports bra with front cutout on a model holding a small dumbbell

    ButterSoft™ X Back Sports Bra

    Price range: £20.62 – £52.02
  • Woman wearing a beige sports bra and shorts set on a white background

    ButterSoft™ 3″ Foldover Biker Short - Black

    Price range: £29.80 – £46.13
  • Front view of oat-coloured scoop-neck sports bra with burgundy trim, styled with matching mini skirt

    ButterSoft™ Contrast Scoop Neck Sports Bra - Oat Milk

    Sale price: £52.02 Regular price: £85.83 Save 39%
  • Beige CloudForm™ Ruched Sports Bra - Premium Fitness & Activewear

    CloudForm™ Ruched Sports Bra - Comfortable & Stylish Fitness Wear

    Price range: £30.60 – £38.25
  • Woman wearing a yellow athletic outfit with a white background

    CloudForm™ 25″ Low Rise Legging

    Price range: £33.66 – £38.25
  • Woman wearing a black athletic outfit on a white background

    AirSculpt Sports Tank Top with Built-In Bra

    Price: £27.52
  • Racer Back Sports Top women's bra - Beige - Premium Fitness & Activewear for Men & Women|UK

    CloudForm™ Racer Back Sports Top

    Price range: £33.66 – £42.84
  • Person wearing a white outfit with sunglasses on a white background

    Wellness Club Bow Mini Shorts - Ivory

    Price: £16.31
  • Low Rise Legging - Black - Premium Fitness & Activewear for Men & Women|UK

    ProStretch™ 25″ Low Rise Leggings

    Sale price: £58.14 Regular price: £95.93 Save 39%
  • Triangle Sports Bra - Merlot - Premium Fitness & Activewear for Men & Women|UK

    Merlot ProStretch™ Sports Bra - Triangle Cut

    Sale price: £52.02 Regular price: £85.83 Save 39%
  • Reflective Lightweight Running Shorts - Grey - Premium Fitness & Activewear for Men & Women|UK

    Grey Reflective Running Shorts - Breathable Design

    Sale price: £52.02 Regular price: £85.83 Save 39%
  • Woman wearing a light green sports outfit on a white background

    CloudForm™ High Waist 5″ Side Pocket Biker Short

    Price range: £30.60 – £39.78
  • Green shorts with a drawstring on a white background

    Men's Jogger Shorts with Adjustable Drawstring and Pockets

    Price: £19.37
  • b09a0996d3e74f9e90f763c797df58da-Max

    Wide Waistband Sports Shorts with Pockets

    Price: £22.43
  • a715af8b0e6b4a56a8f34064b8448711-Max

    Drop Shoulder Long Sleeve Hoodie and Shorts Set

    Price: £38.75
  • 43551c9feedd4137821b4a3e36dbdf60-Max

    Women's Wide Strap Cropped Sport Tank Top

    Price: £24.47
  • e502c891-d677-482c-b0ef-db2b9a6f0c9d-Max

    Halter Neck Active Cami

    Price: £23.45