The product features near-zero net weight in water, allowing a single operator to carry and deploy it swiftly underwater—dramatically accelerating emergency response times. With minimal deformation, it maintains stable dimensions and consistent buoyancy output even in harsh, complex underwater environments. For the same buoyancy rating, its self-weight is less than one-tenth that of conventional materials. Soft and foldable, it eliminates the need for heavy machinery in transport, storage, and deployment.