LavaCore Womens Hooded Long Sleeve Shirt Black 4 / XXXSBehind the Technology of Lavacore Lavacore is a technically advanced fabric, constructed and engineered exclusively for water sports requiring the ultimate in thermal control and superior comfort. This unique synthetic construction closely matches the stretch and movement of a traditional lycra rash vest, whilst providing the insulation qualities similar to that of a Neoprene wetsuit. Close to the skin, Lavacore's soft internal fleece and high 4 way