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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.

MEN'S FOOTWEAR SIZE GUIDE

CM	EU	UK	US
26.2	40	6	7
26.9	41	7	8
27.6	42	8	9
28.2	43	9	10
28.9	44	10	11
29.5	45	11	12
30.2	46	11.5	12.5
30.9	47	12	13
31.5	48	13	14
32.2	49	14	15

PRODUCT INFO

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

350g

SIZE & FIT

This Vivo fits true to size.

MATERIALS & TRANSPARENCY

UPPER

Vamp (100% RPET), Overlay (20% Bio Corn KPU, 80% Polyurethane), Collar Knit (RPET 75%, Elastane 21%, Nylon Hotmelt 4%), Eyestay TPU (80% Polyurethane 20% Resin)

LINING

Lining Microfibre (40% Polyester, 60% Polyurethane + Hotmelt)

HARDWARE

Toggle Polycarbonate, Lace End TPU

LACES

100% RPET

INSOLE

Bloom, Blind Insole (100% RPET), Turned Insole Backer (100% RPET)

OUTSOLE

Swim Run ESC Michelin Outsole (52% Synthetic Rubber, 48% Additives)

MADE IN VIETNAM

BUILT FOR AMPHIBIOUS ADVENTURE

The Hydra ESC is for wild runners, swimmers, and swimrunners seeking a deep connection with the aquatic biome. It’s part of our Ecological Survival Collection.

The materials drain and dry rapidly and stay light when wet. Hydrodynamic, quick-lock lacing allows easy on-the-move adjustments. A RISE foam insole, made with excess algae biomass choking up waterways, glides through water. And the Michelin© ESC sole grips even the slickest, most technical trails. Pinnacle swimrun footwear, pinnacle trail-running footwear.

OFF-TRAIL EXTREME

Extreme traction for extreme terrains, still with plenty of barefoot feeling to connect to nature.

MULTI-TERRAIN

Giving you grip and ground feel on everything from wet and dry, rocky and firm terrain.

FIT, FEEL, FLEX

For natural stability, natural sensory feedback and natural strength.

Style #: 309460-04

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