Ultra Durable: Patented Injection Molded Monprene Gel Harness is extremely resistant to UV, chemicals and abrasion. The fabric-free harness uses no velcro or zippers. "BC-4-Life" Modular Design: Customizable to add/remove weight systems, straps and pouches. Extended lifespan due to simplified repairs. Virtually every component, including buckles, can be replaced without stitching. Instant Dry: Ideal for travel due to less water retention and lower post-dive weight. Neutrally Buoyant: Near-Zero inherent buoyancy requires less lead, resulting in better buoyancy control and much more enjoyable diving. Dual-Compound Backplate: Provides the ultimate in stability and comfort. Single tank band system allows for easier assembly.