4/3mm Kid's & Junior's Quiksilver SYNCRO FullsuitThe 4/3mm Kid's & Junior's Quiksilver SYNCRO Wetsuit gives some serious stretch and warmth for your dollar with this suit! The entire wetsuit is made of superstretch neoprene which is lightweight and will not restrict your movement. Also features sealed seams to keep cold water from trickling in, a full length back zipper for easy entry & exit, and an adjustable neck closure. Sealed seams work with the anti-flush zipper gasket (hydroshield) to keep cold water out. Also features a Warmflight thermal lining for extra warmth, durable kneepads, and a key loop. The Quiksilver Syncro is consistently our best selling wetsuit line, so good choice!