Just as good for more experienced young surfers as for groms this wettie offers supreme warmth and enables a full range of movement. :: Boy > Wetsuits. Boys' wetsuitEntry: Chest zipThickness: 5/4mmAX2 Superflex neoprene: Enables great flexibility and range of movementStrategically-positioned seams: Minimises chafing and maximises durabilityInternal hollow fibre thermal chest and back: Provides super warmth and comfort Size: 09-10 YRS,11-12 YRS,13-14 YRS,15-16 YRS.