... surfing sports 4:Made of High Neoprene Warm Life Jackets with Neoprene material 1)4.0 mm foam(SBR) ... for all neoprene foam Chart summary: Product nameNeoprene Life Jackets manufacturer at China Materialsoft feeling,durable,snug and ... be worn as stand-alone items in warmer waters,with make and females styles,and 3mm ,5mm,7mm ... forward to your visit for our factory. Warm Life Jackets with Neoprene material