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O'Three Undersuit PBB Extreme Undersuit




Extreme thermal protection with reduced bulk and buoyancy.

Internal thermal insulation for dry suits, we feel, is one of the most misunderstood elements of dry suit diving. It is fundamental for divers to understand thermal layering and its buoyancy implications when deciding what to wear under a dry suit. Materials that have been proven in more extreme environments than diving have been used by O?Three in the development and manufacture of a technical, functional, easy to wear set of garments specifically designed for our sport. O'Three's Point Below Base Extreme (PBB Extreme) layering system is stage two in our multifunctional, interchangeable heating system.