Purpose-built for tec diving, the X-Tek Pure is configured for either single or double-tank diving. It includes a stainless-steel back plate and a doughnut wing with 30 pounds of lift for single-tank systems, or 60 pounds of lift for double-tank systems. The wing’s outer shells are made of 1,680-denier ballistic nylon. The inner bladder is made of 420-denier nylon for puncture resistance. X-Tek BC components are fully modular and compatible with all X-Tek systems.