Best Sellers

This is where greatness and growth are found – our Bestsellers range includes go-to gear worn by sporting legends around the world.

From high-performance compression tops that enhance your endurance to technologically advanced running shoes that propel you forward, these iconic pieces have been handpicked for their unrivalled performance, style, and popularity among athletes.

Sleek and stylish, bold and versatile, find everything you need to join the ranks of champions among our Bestsellers – and prepare to rise above the edge of your limits.

Shop below to experience the unparalleled thrill of sporting excellence.

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Black Gym Towel
£20.00
Size

Features: 

  • 100% organic cotton 
  • Jacquard branding 

Description: Made from high-quality 100% cotton, our Gym Towel is a must-have to keep the sweat at bay throughout your workout. And you can head to the showers in style with the iconic Castore jacquard branding on your new favourite towel. 

Style Code; CAA60162

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Lightweight Active Cap - Navy
£30.00
Size

Features:

  • 100% polyamide
  • Adjustable strap 
  • Embroidered eyelets 
  • Internal sweat-wicking band
  • Reflective detailing

Elevate your on-the-go style with this breathable, moisture-wicking Active Cap, a casual staple from our Accessories All Round Active collection. Featuring silver reflective taping, this Cap keeps you visible even in the darkest hours of your workouts – encouraging you to keep pushing forward.

Style Code: CAB90344

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Lightweight Active Cap - Black
£30.00
Size

Features:

  • 100% polyamide
  • Adjustable strap 
  • Embroidered eyelets 
  • Internal sweat-wicking band
  • Reflective detailing

Elevate your on-the-go style with this breathable, moisture-wicking Active Cap, a casual staple from our Accessories All Round Active collection. Featuring silver reflective taping, this Cap keeps you visible even in the darkest hours of your workouts – encouraging you to keep pushing forward.

Style Code: CAB90344

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Reiss Cassian Backpack
£70.00
Size

Features: 

  • Adjustable shoulder straps
  • Multi-pocket entry 
  • Reflective detailing at base and straps
  • Silicon Reiss/Castore badge at upper front panel
  • Castore wings logo at strap

Travel light, but bold, with our Unisex Reiss Cassian Backpack. Crafted with multi-pocket entry for spacious and secure storage, you can customise your fit and aesthetic with easily adjustable shoulder straps. Finished with reflective detailing for low-light visibility, completing this essential Backpack that’s made to move with you.

Style Code: CUA80124

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Cushioned Ankle Socks 3 Pack - Black
£12.00
Size

Features:

  • 69% cotton, 27% polyester, 4% elastane
  • Rib elastication
  • Reinforced heel and toe
  • Terry towelling
  • Knitted branding

Push yourself with every step in these Cushioned Ankle Socks (Pack of 3) from our Accessories Core collection. The ribbed elastication ensures a secure fit, while the cushioned heel and toe combine with terry towelling to provide unmatched comfort. Take charge of your sporting style and unleash your fearless stride.

Style Code: CAB60393

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Cushioned Crew Socks 3 Pack - Black
£15.00
Size

Features:

  • 69% cotton, 27% polyester, 4% elastane
  • Rib elastication
  • Reinforced heel and toe
  • Terry towelling
  • Knitted branding


Conquer every step in style with these Cushioned Crew Socks – a staple from our Accessories Core collection. The rib elastication ensures a secure fit, while the cushioned heel and toe combine with terry towelling provide unmatched comfort. Take charge of your sporting style and unleash your fearless stride.

Style Code: CAB60394

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Cushioned Crew Socks 3 Pack - White
£15.00
Size

Features:

  • 69% cotton, 27% polyester, 4% elastane
  • Rib elastication
  • Reinforced heel and toe
  • Terry towelling
  • Knitted branding


Conquer every step in style with these Cushioned Crew Socks – a staple from our Accessories Core collection. The rib elastication ensures a secure fit, while the cushioned heel and toe combine with terry towelling provide unmatched comfort. Take charge of your sporting style and unleash your fearless stride.

Style Code: CAB60394

Quick Order
Cushioned Ankle Socks 3 Pack - White
£12.00
Size

Features:

  • 69% cotton, 27% polyester, 4% elastane
  • Rib elastication
  • Reinforced heel and toe
  • Terry towelling
  • Knitted branding

Push yourself with every step in these Cushioned Ankle Socks (Pack of 3) from our Accessories Core collection. The ribbed elastication ensures a secure fit, while the cushioned heel and toe combine with terry towelling to provide unmatched comfort. Take charge of your sporting style and unleash your fearless stride.

Style Code: CAB60393