Fabrics: Freemax neoprene at body & legs - Hyperstretch 3.0 at arms and front low legsThermal Smoothie: Chest and back - Seams: Flatlock stitched seamsEntry system: Back zip entry system with YKK #10 plastic zipHydrowrap adjustable neck closure - Supratex knee pads durable, lightweight and flexibleWater based glue used for lamination