The Dome is made of Eicoprene technology, a non-petroleum based synthetic foam derived from a mix of oyster shell powder, limestone, and recycled tires. To laminate the recycled polyester lining Picture Organic Clothing uses Aqua-A, a solvent-free water-based glue with no harmful chemicals. Designed for 41°F-53°F water, the flexible and heavy-duty power seams make the 5/4 Front Zip with hood stand out, and the Dry Now lining wicks moisture away for fast drying and increased insulation. The hyper-stretch knit under the arms offers total freedom of movement. These amazing wetsuits also include a WPF lining (Warmth Performance). The 3D-Knit construction and the WPF lining provide warmth by trapping air between each loop. The Dome also features glued, blind-stitched, fully-taped seams (GBS) for maximum protection. 5/4/3 full-length wetsuit with hood Glued and blindstitched construction (GBS) Watertight seals Glideskin neckline Knee pads Fully-taped seams Chest-zip entry Power seam Fuse cut