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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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  • c382dda3-a3cf-4229-ad99-409418e27d68-Max

    Women's Crisscross Scoop Neck Active Tank Top

    Sale price: £28.55 Regular price: £30.59 Save 7%
  • 0054656109e64348a5520eb7657fd522-Max

    Slim Fit V-Waistband Sports Shorts

    Sale price: £24.47 Regular price: £26.51 Save 8%
  • d482cf99fdbb48c1b5a076db8d329d67-Max

    Millennia Contrast Sports Bra

    Sale price: £26.51 Regular price: £29.57 Save 10%
  • 72b2ee91c6614032af668235e66827f1-Max

    Millennia Cropped Sport Tank

    Sale price: £23.45 Regular price: £25.49 Save 8%
  • 374108b6b5b6441db253c204e7b3ac6f-Max

    Millennia Ultra Soft High Waist Leggings

    Sale price: £29.57 Regular price: £30.59 Save 3%
  • 6b2f18ffeb184c5292ee2fda2a5541af-Max

    Millennia Cutout Long Sleeve Cropped Sports Top

    Sale price: £30.59 Regular price: £33.65 Save 9%
  • 0cb0ef8957a2472b82c2278cb5c309a7-Max-Origin

    Men's Plus Size Drawstring Active Pants

    Sale price: £35.69 Regular price: £37.73 Save 5%
  • 121d93c8-93dc-4e9f-b652-182eeeb4577f-Max

    Crisscross Back Wide Strap Active Jumpsuit

    Price: £36.71
  • 216080bf-d849-4b4a-ba93-0984cf75bee2-Max

    Printed Active High Waist Leggings

    Sale price: £27.53 Regular price: £30.59 Save 10%
  • 741db4fa53b844839df0e916ca65bfda-Max

    Millennia V-Waist Yoga Leggings with Pockets

    Sale price: £36.71 Regular price: £39.77 Save 8%
  • 3b9e2679331c4a9bba56c90a0e162c72-Max

    Millennia Breathable Halter Neck Sports Bra

    Sale price: £27.53 Regular price: £29.57 Save 7%
  • 873081c8-b81d-4140-9c31-8ee3a3e893ff-Max

    Millennia High Waist Active Leggings

    Sale price: £28.55 Regular price: £33.65 Save 15%
  • High Waist Active Leggings for Women - Premium Fitness & Activewear for Men & Women|UK

    High-Waisted Scarp Contouring Leggings – Seamless, Squat-Proof Gym Tights for Women

    Sale price: £39.77 Regular price: £44.87 Save 11%
  • 87e70eb4807e4bde88f5e39409b295e8-Max-Origin

    Drawstring Waist Cropped Jacket

    Price: £56.10
  • 6bc4d300d3854c2299c4c4f92e0e3cc1-Max-Origin

    Turtleneck Side Zipper Sweatshirt and Pants Set

    Sale price: £40.79 Regular price: £44.87 Save 9%
  • 1eed2b13eaa6485e8a502c21b2f2ab47-Max-Origin

    Velvet Midi Dress with Feather Cuffs

    Sale price: £60.17 Regular price: £62.21 Save 3%
  • Tie Waist Longline Coat - Allen Fitness | Running Shoes, Leggings & Activewear UK

    Tie Waist Longline Coat For Women

    Sale price: £57.11 Regular price: £62.21 Save 8%
  • High-Waisted Shorts - Allen Fitness | Running Shoes, Leggings & Activewear UK

    Retro High-Waist Shorts For Women UK

    Sale price: £31.61 Regular price: £37.73 Save 16%
  • Elevated Waistline Shorts For Women

    Elevated Waistline Shorts For Women UK

    Price: £28.55
  • High-Waist Textured Shorts - Allen Fitness | Fashion & Activewear UK

    Textured High-Waist Shorts For Women

    Sale price: £34.67 Regular price: £36.71 Save 6%