From O'Neill

HyperFreak Neo-Skins Tops feature strategically placed Premium Skins material and our Recycled TechnoButter 3 neoprene containing 90% or more recycled fibers in the liner fabrics. This exclusive technology weighs 20% lighter with 30% less water absorption than any other premium neoprene. The HyperFreak Neo-Skins top defines super lightweight, ultra-stretchy warm water gear.