The Hydra ESC is our pinnacle swimrun and trail trainer, built to thrive in the aquatic biome in harmony with nature. It’s a pioneering take on amphibious barefootwear, created alongside elite athletes to glide underwater, grip on land, and drain and dry quickly. Now in an exclusive colourway chosen by surfing legend John John Florence.

SWIMRUN ESC MICHELIN© OUTSOLE
The high-vis Michelin© sole for all-terrain traction.

BLOOM® FOAM INSOLE
The Active Bloom® Foam Insole is made using the first sustainable alternative to synthetic and petrochemical EVA foam, derived from algae biomass. This algae can damage our oceans, so harnessing it in our footwear helps clean up the environment.

BREATHABLE MESH
Breathable, lightweight and comfortable.

RAPID DRAIN AND DRY
Mesh construction provides efficient drainage and keeps out sediment and debris, while water resistant materials ensure the boot doesn't absorb water, keeping them light and comfortable.

TOUGH RUBBER COMPOUND
Strong, non-marking rubber compound for sticky grip and high-abrasion when you need it most.

VEGAN*
*The main materials in all our Vegan* products are synthetic and aren’t derived from animals. We don’t (yet) have the transparency we need over the production of all the small components (such as adhesives and dyes) used in these products to ensure they meet vegan best practices. So, whilst we believe the shoes are vegan, we’re not yet able to guarantee it and want to be fully transparent.

WEIGHT
Based on a single shoe in Men's size: EU 42 | UK 8 | US 9