What Our Gearhead(R) Experts Are Saying:"I wore the 5/4 Absolute Ultra Chest Zip HD Wetsuit through the coldest stretch of our winter season and came away genuinely surprised by how mobile it kept me at that thickness. The integrated hood seals out the cold without that suffocating feeling you get from lesser suits, and the Graphene Ultra lining meant I was warm from the very first duck dive."There is a version of winter surfing that most people never experience because they do not have the right suit to make it possible. The 5/4 Absolute Ultra Chest Zip HD Wetsuit from Billabong exists to close that gap, pairing an integrated hood with Billabong's most advanced thermal and stretch technologies to build a suit that treats genuinely cold water as its home turf. The S-Zip chest entry swings open wide for easy solo entry and seals reliably once you are in, so suiting up alone in the dark before a dawn patrol does not become its own ordeal. Graphene Ultra internal lining delivers Billabong's highest concentration of graphene-infused recycled nylon yet, engineered to set a new benchmark for warmth and flexibility at this thickness. Upcycler Pro stretch across the body uses 100% post-consumer recycled textiles to build a lining that flexes fully and holds its shape across a full winter of use, while Airlite 4D on the upper body keeps weight and water absorption low so the suit never feels heavy in the water. OCENA natural rubber throughout provides unmatched stretch and warmth from the lightest, most sustainable rubber Billabong has ever built a suit around, and welded seams combined with GBS construction keep every seam locked down and water-tight when conditions are at their worst.