A revelatory wetsuit design and one that we have been excited about since first laying eyes on it. The Billabong Furnace Ultra introduces the innovative Gullwing chest zip entry, delivering supreme flexibility while making getting in and out of your wetsuit incredibly easy. Designed for surfers who demand uncompromising performance, the Furnace Ultra combines Billabong's most advanced materials and construction technologies to create a wetsuit that delivers exceptional warmth, flexibility, comfort and durability.
The innovative Gullwing chest zip system is the standout feature, creating a huge opening that makes entry and exit remarkably simple. We have been seeing more and more wetsuits adopt this entry system, with World tour surfers showcasing this style in free surfs and heats. Developed by Billabong's Takahiro Noguchi, the Gullwing system has been refined over more than a decade and is designed to provide an easier entry without sacrificing the secure, streamlined feel of a chest-zip wetsuit.
At the heart of the Furnace Ultra is OCENA+ natural rubber, an advanced neoprene-free foam that is 10% lighter and offers 15% more stretch than standard OCENA. Engineered to deliver exceptional warmth, flexibility and durability, it provides the foundation for a high-performance wetsuit built to handle demanding conditions season after season. Inside, Graphene Ultra and Graphene Pro thermal linings work together to maximise heat retention without compromising flexibility. Graphene Ultra is Billabong's warmest thermal jersey to date, with independent laboratory testing showing a 26.6% increase in thermal retention and 20% longer heat retention.
The Furnace Ultra also features new Upcycler Airlite 4D through the upper body, an incredibly flexible 4-way stretch jersey made from 100% post-consumer recycled textiles. Combined with the lightweight and durable Airlite II exterior, the suit moves naturally with your body while providing the durability needed for regular surf sessions.
To finish, fully welded, stitchless seams provide a strong, watertight seal while eliminating needle holes through the neoprene. This construction also helps create Billabong's most flexible seam to date, keeping the suit feeling unrestricted when you're paddling, popping up and surfing.
The result is a genuinely high-performance winter wetsuit that brings together cutting-edge natural rubber technology, advanced graphene thermal insulation, next-generation stretch materials and one of the easiest entry systems available.
Features:
- Gullwing Chest Zip Entry – Innovative design for supreme flexibility and incredibly easy entry and exit.
- OCENA+ Natural Rubber – Lightweight, high-stretch neoprene-free foam engineered for warmth, flexibility and durability.
- Graphene Ultra & Graphene Pro Linings – Advanced thermal insulation designed to maximise heat retention while maintaining flexibility.
- Upcycler Airlite 4D – 100% post-consumer recycled, 4-way stretch jersey for exceptional flexibility and comfort.
- Airlite II Exterior – Lightweight, durable and flexible outer jersey with low water absorption.
- Stitchless Welded Seams – Strong, watertight construction that enhances flexibility and helps minimise water entry.
Year: 2026Model: ABYW100299Colour: Black
