Natural rubber, comfort, and durability — the Seek Core 5/4 Back Zip stands out with a clean, no-fuss design and premium features at an accessible price. Built for riders who want dependable performance and essential warmth without breaking the bank. Key Features Warm:Hot_Stuff 2.0 ensures no limitation in stretch and keeps you warm at the same time. Stretch:A smart use of fabrics will make sure this suit will give you good times on the water. Natural Rubber:100% neoprene-free FSC certified natual rubber, oystershell powder, plant-based oil and eco-carbon black. Seam Sealing: