Your kid watched one surfing movie and now they're hooked, but you don't live somewhere warm. Bummer dude. Luckily the Billabong 4/3 Teen Synergy Back Zip GBS Wetsuit will keep them firing on all cylinders when the water temp dips below 60 degrees. The back zip design is easy to get on for new groms, and superlight neoprene foam streamlines their aqueous adventure. Show the sharks who's boss in the Billabong 4/3 Teen Synergy Back Zip GBS Wetsuit.