Bulk™ × Castore

What happens when two winners join forces? Something extraordinary. The best in British sportswear unites with the leaders in sports and active nutrition to bring you a capsule collection of premium clothing. It’s time to train like a pro.

Wear it well in Bulk™ × Castore. An exclusive range of premium sportswear. Carefully crafted to take your training to the next level. Fabrics that feel like a second skin. Design innovation that pushes boundaries. We’re giving you the edge with our high-performance hoodie,1/4 zip and training t-shirt.

Castore, the brand that believes in making athletes better, combines advanced engineering with unique technical fabrics to create the highest quality sportswear in the world. Worn by world leaders such as Andy Murray, Owen Farrell and Adam Peaty, this is a sportswear brand for athletes who demand the very best. 

Bulk™ × Castore. The best just got better.