FREE SHIPPING
This item qualifies for Free Shipping! Details.
But fear not - there is plenty to explore...
Shop all Billabong Shop sale BillabongMEMBERSHIP
Earn up to 10% back in rewards. Learn more. Join Free.
EASY RETURNS
Take up to a full year to return your item! See our Return Policy.
LOWEST PRICE GUARANTEE
Find a better price? We’ll beat it by 5%. See our Price Match Policy.
Head to the coast with the Billabong Synergy 4/3 Back Zip GBS Wetsuit. Even if your local spot is chilly, the Synergy will keep you warm and toasty. The back zip feature makes this suit a million times easier to get off, whereas the glued and blindstitched seams keep the flushing of cold water at an absolute minimum. Pre-bent, padded knees combined with flexible Neoprene ensure your full range of motion. Never stop surfing with the Billabong Synergy 4/3 Back Zip GBS Wetsuit.
Premium AX2 Superflex Neoprene – A premium lightweight foam core, providing the optimum blend of thermal retention, flexibility and durability.
Drymax Furnace Lining – Internal thermal lining. Comprised of five layers to create a material that not only keeps you warmer but drier. It is also lightweight, quick-drying, and highly flexible.
Polyester Propylene Panels – On the chest and the back.
Full Back Zip
55° F +
3D Molded Supratex Knee Pads – Pre-bent knee pads make for a more durable wetsuit that is highly flexible.
Contour Grip Skin Collar – This pre-shaped collar provides chafe-free comfort and a tight seal that prevents water entry.
Impact Welded – This means the suit has heat-taped stress points to increase the wear of the wetsuit.
Strategic Positioned Seams – A more flexible, more comfortable, and more durable wetsuit then ever before.
Triple Glued and Blindstitched Seams – Triple glue indicates the seams have been glued 3-times over for added durability and to reduced water escaping. The blindstitched seams are comfortable and durable to enhance the longevity of your suit and keep you chafe-free.