Billabong’s top-of-the-range winter wetsuit: a hooded 5/4 with natural rubber foam, a Graphene Ultra lining and the Gullwing chest zip.
Size chart
Metric Sizing
| Size | Height | Weight | Chest | Waist |
| Extra Small | 165-170cm | 57-61kg | 88-92cm | 71-76cm |
| Small | 168-173cm | 62-69kg | 92-97cm | 74-79cm |
| Small Tall | 175-180cm | 62-69kg | 92-97cm | 74-79cm |
| Medium Short | 168-175cm | 66-73kg | 97-102cm | 79-82cm |
| Medium | 175-180cm | 70-77kg | 97-102cm | 79-84cm |
| Medium Tall | 180-186cm | 75-82kg | 99-102cm | 79-84cm |
| Large Short | 170-175cm | 75-82kg | 104-109cm | 84-89cm |
| Large | 180-186cm | 79-86kg | 104-109cm | 84-89cm |
| Large Tall | 185-195cm | 84-91kg | 104-109cm | 84-89cm |
| Extra Large Short | 173-178cm | 79-86kg | 109-112cm | 91-97cm |
| Extra Large | 183-191cm | 86-93kg | 109-112cm | 91-97cm |
| XXL | 185-195cm | 93-100kg | 112-117cm | 97-102cm |
Frequently bought together
Description
The Furnace Ultra is the warmest, most technical wetsuit in Billabong’s range, built for long sessions in the depths of an Irish winter. Its Graphene Ultra lining is Billabong’s warmest yet. In independent lab tests it held 26.6% more heat and kept it 20% longer than their previous lining. Under that sits OCENA+ natural rubber, the lightest and stretchiest foam Billabong makes, so a 5/4 still feels easy to paddle in. The attached hood keeps heat in and stops cold water running down your back. The Gullwing chest zip, designed by Billabong’s Japanese team, seals out flushing and is still easy to get in and out of. Liquid-welded seams keep it watertight, so you can stay out as long as the waves keep coming.
Key features
- 5/4mm with an attached hood
- Gullwing chest zip entry
- Graphene Ultra lining on the core, Graphene Pro on the arms and legs
- OCENA+ natural rubber foam, very light and stretchy
- AIRLITE 4D on the upper body and AIRLITE II on the body, light and slow to absorb water
- Liquid-welded Power Seams outside, super-flex tape inside
Materials
- OCENA+ natural rubber foam
- AIRLITE II outer: 90% recycled nylon, 10% recycled spandex
- Aqua Alpha water-based glue
