O’Neill created the magic combination of ultimate flexibility and superior warmth in the brand-new Hyperfreak Fire 4/3+ back zip wetsuit. The Hyperfreak Fire features the exclusive buttery-soft high-end Technobutter 4 neoprene. What sets it apart is the addition of the red TB4 Firewall liner, which is infused with graphene creating warmth and durability. The use of sustainable materials such as solvent-free glue, dope-dyed yarn, and recycled oyster shells in the neoprene makes the Hyperfreak Fire even more impressive. O’Neill has their back zip entry dialed in with the patented Z.E.N. zip closure.