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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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  • bb76a37e-6992-40f1-a5ea-5eb6629cc271-Max

    Tie-Dye High Waist Active Leggings

    Sale price: £27.53 Regular price: £29.57 Save 7%
  • 86161c01-a1ad-4a8a-8ff9-7990f9ef6d62-Max

    Men's High Waist Active Leggings

    Price: £26.51
  • 37419703-ca6f-4ce5-914c-def95679cce7-Max

    Printed Wide Waistband Active Leggings with Stirrups

    Price: £26.51
  • d8a30bffcdda4f9498fb65c99f4fe437-Max-Origin

    Men's High Waist Active Leggings

    Price: £15.29
  • 3f7fedbb81864947aeef58320b557231-Max-Origin

    Men's High Waist Active Leggings

    Sale price: £17.33 Regular price: £20.39 Save 15%
  • d3a11cc384314791ae3a967b83ae479b-Max-Origin

    Men's Breathable Active Leggings

    Sale price: £18.35 Regular price: £20.39 Save 10%
  • d5841baf6c8244d2a3dc685d0b5a12f3-Max

    Slim Fit Wide Waistband Long Sports Pants

    Sale price: £26.51 Regular price: £28.55 Save 7%
  • a33dee5b2ccf406bbd3f4bf8f1a7523d-Max-Origin

    Men's Full Size Side Stripes Zip Up Top and Pants Set Plus Size

    Sale price: £41.81 Regular price: £46.91 Save 11%
  • 2fc7c65fe1ad4d9fb9f958c05fafc486-Max-Origin

    Men's Plus Size Round Neck Long Sleeve Active T-Shirt

    Price: £25.49
  • 839ca365-4475-401a-8c22-1f8c7d683e03-Max

    High Waist Active Shorts

    Price: £22.43
  • 3c671de3-1d6a-4c59-8fa1-de407a4be822-Max

    Men's Drawstring Pocketed Active Pants

    Sale price: £34.67 Regular price: £36.71 Save 6%
  • fb94b6c1ca8349e59477cd828b50a8ca-Max-Origin

    Men's Plus Size Mock Neck Long Sleeve Active T-Shirt

    Price: £27.53
  • 4ce7936e-e57f-4d8f-9cda-1886cfde7c1d-Max

    Men's Elastic Waist Active Shorts

    Price: £23.45
  • 33e6d73d-5de3-41ae-9c0f-352acecdec0e-Max-Origin

    Men's Performance Moisture-Wicking Athletic T-Shirt

    Sale price: £17.33 Regular price: £20.39 Save 15%
  • 05d3269f-393d-4d7f-8c71-6d258c1d63a5-Max

    Men's Camouflage Drawstring Active Pants

    Sale price: £38.75 Regular price: £40.79 Save 5%
  • 1eb0fe08-7042-40f6-92ab-de866c3d0709-Max-Origin

    Men's Plus Size Drawstring Active Shorts

    Price: £22.43
  • ec48e0de3f534cc697741640b0f4ecda-Max-Origin

    Men's Plus Size Zip Up Stand Collar Puffer Jacket

    Sale price: £59.15 Regular price: £61.19 Save 3%
  • Drawstring Active Men's Joggers - Premium Fitness & Activewear for Men & Women|UK

    Men’s Drawstring Active Joggers

    Sale price: £40.79 Regular price: £41.81 Save 2%
  • b3ffa14f-d4c5-4527-8c2c-45aa3873e0bd-Max

    Crisscross Wide Strap Sleeveless Jumpsuit

    Sale price: £36.71 Regular price: £41.81 Save 12%
  • 536c1f7819b54d08b9ee789510d42a2f-Max-Origin

    Men's Plus Size Performance Long Sleeve Active T-Shirt with Zipper

    Sale price: £43.85 Regular price: £46.91 Save 7%