These Deep Sea Diver Hoodies Use British Special Forces Tech

Over 80% of the deep ocean remains unexplored. And you can see why. With sub zero temperatures, freaky alien-looking creatures, pressures that can crush steel, and the abyss, it’s not the most welcoming.

For divers operating in the coldest, darkest and most hostile environments on Earth – where the water temperature drops below 10°C– the survival system of anyone who values their life is the drysuit.


An impermeable shell that creates a seal of warm air around the body,
wearing a drysuit is a bit like wearing an actual seal.

British Special Forces, S Squadron SBS (Special Boat Service) on patrol during an exercise – “By strength and guile”

And at the heart of this underwater system you won’t find foam,
rubber, or blubber. But fleece. Insanely thick, astonishingly warm,
flexible, fleece.

Naturally you’ll find the most badass drysuit fleece on the planet
belongs to the British Special Forces – guys who don’t mind a bit of
a splash about in some cold water. So we took their fleece – after
asking them nicely – and turned it into the Deep Sea Diver Hoodie
and the Deep Sea Diver Vest.

Model is 6ft 2 / 189cm with a 40 inch / 101cm chest, and wears size Large.

Denser than dense

At 539 grams / 1.2 pounds ! per square metre, this is the densest fleece we’ve ever used. And that means the Deep Sea Diver Hoodie traps more heat than any other hoodie we’ve made. It breathes, wicks, and is fast-drying and odour-resistant. We added egg-shaped pockets for warmth, and a double-lined snorkel hood creates a protective microclimate around your head, sealing in warmth and blocking out the elements.

While traditional heavy fleeces sacrifice mobility for warmth, ours is
engineered for both.

Its four-way elasticity means it bends, stretches
and rebounds in any direction. It moves like a baselayer but insulates
like a winter shell. You can climb in it, sleep in it, or disappear into
a snowstorm in it.

Technical Details

  • Previous slide
  • Fabric: Polartec® Power Stretch™ (91% polyester, 9% elastane)
  • Material weighs: 539 g/m²
  • Vest weighs 700g
  • Four-way stretch
  • Two-way centre-front zip with faux-suede garage and grosgrain guard
  • Exposed zip hand pockets with internal facing
  • Elasticated binding at hem and armholes
  • Flatlock and cover-stitched seams
  • Machine wash 30°C
  • Constructed in Portugal

For the Silo, Nick and Steve Tidball- founders Vollebak.

The Silo:

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