Billabong Furnace Synergy GBS 4/3 Chest Zip Women's Wetsuit

Billabong Product code: N/A
$113.56 $189.28 (VAT free) 40% Off In stock

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Superior value cool-water wetsuit in a durable and quality package

The Furnace Synergy GBS 4/3 Chest Zip Women's Wetsuit from Billabong is lined with ultra-warm Furnace quick dry lining. The double-knit jersey creates air pockets that trap heat and allow for optimal drainage. A Superlight Foam core provides 250% stretch with excellent thermal retention, and a Superflex 250 Jersey tops it off for added insulation and low water absorption.

The best bits…

  • Furnace Quick Dry Lining at font and back
  • Superlight Foam Core made from upcycled car tires – lightweight and high-stretch
  • Superflex 250 Jersey – Velcro resistant and high-stretch
  • Chest zip entry system with internal GBS zipper barrier
  • External seams: twin needle stretch blind-stitch
  • Internal seams: machine-applied pressure-bonded stretch tape
  • Strategically placed seams for maximum movement 
  • Temperature Guide: 12°C - 17°C (Cooler Waters)

Manufacturer's Code: L44G03


Thickness (mm) 4
Hooded No
Zip Type Chest Zip
Thermal Lining Full
Style Full
Seam Type GBS
Colours available Black and Sugar Pine
Sizes available 6, 4, 8 and 10

Size Guide

Remember, Billabong print the European/Australian size on the wetsuit, and this is the size our product page goes by. So, if you're buying a 6, it's a Euro/Aus 6. Convert to your country using the table below, or go by your body measurements.

Check out the imperial measurements below:

Aus/Euro Size US Size UK Size Height (In) Weight (LB) Chest (In) Waist (IN)
4 0 2 4'10"-5'1" 85-90 27.5"-29.5" 21"-23"
6 2 4 5'1"-5'3" 90-105 29.5"-31.5" 23"-25"
8 4 6 5'3"-5'5" 100-115 30.5"-32.5" 24"-26"
10 6 8 5'4"-5'6" 110-125 31.5"-33.5" 25"-27"
12 8 10 5'5"-5'7" 120-135 32.5"-34.5" 26"-28"
14 10 12 5'6"-5'8" 130-150 34"-36" 27"-29"
16 12 14 5'7"-5'9" 140-160 35.5"-37.5" 29"-31"
18 14 16 5'9"-5'11" 150-170 37"-39.5" 30"-32"
20 16 18 5'9"-6'0" 165-185 38.5"-40.5" 32"-34"

Check out the metric sizes below:

Aus/Euro Size US Size UK Size Height (CM) Weight (KG) Chest (CM) Waist (CM)
4 0 2 147-155 cm 39-41 kg 55-75 cm 53-58 cm
6 2 4 155-160 39-48 kg 75-80 cm 58-63.5 cm
8 4 6 160-165 cm 45-52 kg 77-83 cm 61-66 cm
10 6 8 163-168 cm 50-57 kg 80-86 cm 63.5-69 cm
12 8 10 165-170 cm 54-61 cm 83-88 cm 66-71 cm
14 10 12 168-173 cm 59-68 kg 86-91 cm 69-74 cm
16 12 14 170-175 cm 63-73 kg 90-95 cm 74-79 cm
18 14 16 175-180 cm 68-77 kg 94-100 cm 76-81 cm
20 16 18 175-183 cm 75-84 kg 98-103 cm 81-86 cm


  • Free Worldwide Delivery | Non-Tracked | US & CA - $0.00

    Delivery expected by Saturday 11 May

    This is a limited-time free shipping offer. It's free, so won't be the fastest service we offer, and depending on the size of your item, it may not be tracked - but it will be a good reliable service that should arrive within three weeks.

  • Royal Mail Airmail | Non-Tracked | USA & Canada - $6.48

    Delivery expected by Wednesday 8 May

    Royal Mail Airmail is a budget non-trackable delivery method for smaller items. There are no guarantees on delivery date, as this will depend on your location. It is rare for delivery to take more than 2 weeks. If you would like more detailed information please contact us at

  • Royal Mail Airmail | Tracked | USA & Canada - $12.97

    Delivery expected by Friday 3 May

    This service is fully trackable and will be delivered by your Postman, Monday to Saturday at your normal delivery time. There is no signature required. Delivery times are approximately 7 working days, however remote areas may take slightly longer. if you have any queries regarding delivery times please email us at

  • Express International Light | Tracked | USA & Canada - $19.46

    Delivery expected by Monday 29 April

    This is an express fully tracked service with either DHL or Fedex, and a signature is required on delivery. Delivery will be made Monday to Friday between 9am and 5pm. Details regarding delivery times can be found on our delivery information page. If you have a specific request for the courier to be used, please email us



Generally, we'll be happy to exchange or refund anything you've bought for up to one month from the date you receive it, so long as it’s in perfect, unused condition. If you'd like to return or exchange an item you bought more than one month ago, then you may be able to, but please email us about it first – a small restocking charge may also apply.

Returning or exchanging an item does not affect your statutory rights. You’ll find the official cancellation policy within full our Terms & Conditions.


All orders made between 1 November 2018 and 24 December 2018 are eligible for our extended return period. So, if you’re buying someone a gift and it’s not quite right, you’ve got until 24 March 2019 to return it*.

*All other return terms & conditions still apply.


On the back of the delivery note that's included with your order you'll find your returns form. This outlines everything you need to know about the returns process, the information we’ll need from you and where you need to send it back to. If you can't find this form, just download it here, or get in touch on and we'll email it over to you.


You’re responsible for the cost of returning items to us, but if you choose an exchange, we’ll be happy to cover the cost of shipping things back to you.


  • Anything that’s missing its tags or isn’t in a perfect, new and unused condition, including all its packaging
  • Skis and ski bindings which have been mounted, because these will have been done to your specific requirements and can’t be resold
  • Underwear