O'Neill - 4/3 HyperFire CZ SteamerUnrivalled Flexibility & Warmth. The HyperFire steamer (formally known as HyperFreak Fire) incorporates stretch and warmth properties in one wetsuit. Featuring TB4X graphene lined high stretch arms and entry for paddling freedom easy in and out. The internal of HyperFire also has TB4 Firewall liner which keeps you drier and warmer. Hang it up at the end of the surf and the Firewall liner is touch dry in 30 minutes. Sealed seams with internal Fluid