5.37.3 Reiss X Castore - Activewear Collaboration - Men's AW21 Collection Click here to use our website with more accessibility support, for example screen readers
  • sale
  • women
  • men
  • children
  • brands
  • stories



‘Engineered for Modern Living’, our first-ever brand collaboration opens a new chapter in the athleisure-meets-urban-style conversation.

REISS partnered with activewear experts CASTORE to create a collection designed for before, during and after sports practices. Each piece is cut from CASTORE’s cutting-edge materials and assembled with their unique manufacturing methods, while the sartorial elements and refined details throughout the range are unmistakably REISS.

The Harvey Snood, The James Top

“The REISS look goes way beyond occasion and work. We wanted to work with a like-minded partner specialised in the sportswear field. CASTORE’s expertise allowed us to apply the best of REISS' style to technical pieces designed to wear before, during and after our customer's workout. Together we created a unique product,” says REISS’ CEO Christos Angelides.

Left: The Roman Top, The Arlo Trousers
Right: The James Top, The Wills Shorts, The Harley Sock

“It has been truly collaborative, leaning on the areas of expertise within each brand to explore new, untapped opportunities. This collaboration has allowed a blank canvas approach, a chance to learn and to challenge the rules," commented CASTORE’s Founder, Tom Beahon.

Top: The Travis Top, The Arlo Trousers 
Middle: The Francis Top, The Jules Jacket, The Cooper Trouser
 The Hudson Cap 
Bottom: The Harvey Snood, The Ryder Jacket

The collection includes a water, wind and dirt-resistant lightweight running jacket cut from a technical fabric with a microporous membrane for breathability and reflective branding. 

Lightweight and quick-drying trousers for high-intensity training come with an adjustable waistband and cut to a slim, athletic shape. A high-stretch vest for low-intensity outdoors training has zoned quilting for additional warmth.

On Lorena: The Gable Coat, The Harvey Cap 
On Ed: The Francis Top, The Arlo Trousers

On the lifestyle end of the athleisure spectrum, five styles are specifically for recovery - a pair of trousers, joggers, a hoodie, a t-shirt, and a quarter-zip long sleeve pullover.

The campaign was photographed at the London Aquatics Centre. The Zaha Hadid-created venue embodies both CASTORE's and REISS' modern outlook on design and provides the perfect background for their future-facing collection.

The Roman Top

Sizes are available in XS-XXL for garments across the range and one size fits all for accessories. Looking forward, Spring 2022 will see an exciting womenswear range added, leaning on the same properties that are key to our brand-new menswear collection. 

Confirm Country Change

Are you sure you want to navigate away from this site?

If you navigate away from this site
you will lose your shopping bag and its contents.